LEXIS

English · noun · River

memory

/ˈmem.ə.ri/ · AmE often /ˈmem.ri/

Old in the language as remembrance, and young in one sense: a device that stores information.

English memory is old in the language and young in one of its senses. Late 13c. it already meant recollection and remembrance, and also fame. The faculty sense is late 14c. The computer sense, a device that stores information, is from 1946. The word arrives from Anglo-French memorie and Old French memoire, and directly from Latin memoria, the abstract noun from memor, ‘mindful, remembering,’ from PIE *(s)mer- (1) ‘to remember.’ Full reduction of MEMORY is 35. Ordinal is 89. Reverse reduction is 28. All misses. Those are found observations, after the language. Methods named. Not historically intended in Latin memoria. Greek μνήμη is a related word, not this etymon.

Morphology Latin memor, ‘mindful, remembering.’ Established for the Etymonline claim, from PIE *(s)mer- (1) ‘to remember.’ That reconstruction is Etymonline’s, not a sound-law proof opened on this plate. Latin memoria, ‘memory, remembrance, faculty of remembering,’ is the abstract noun from memor. Established. Old French memoire (11c.), ‘mind, memory, remembrance; memorial, record,’ passes through Anglo-French memorie into Middle English memory, late 13c. Established. The verb remember is mid-14c. remembren, from Old French remembrer, from Latin rememorari, ‘recall to mind,’ re- + memorari, from memor. The -b- is regular epenthesis, as in number and chamber. Established. Memorial, adjective and noun, is late 14c., from Old French memorial and Latin memorialis, ‘of or belonging to memory.’ Established.

  1. Proto-Indo-European
    root (1)
    Established

    *(s)mer-1,4

    To remember. Established as Etymonline’s reconstruction for this family. Not offered here as a proved sound law. Greek μέριμνα and μέρμερος belong to this listed family. Greek μνήμη does not.

  2. Latin
    the adjective
    Established

    memor1

    Mindful. Remembering.

  3. Latin
    the noun
    Established

    memoria1

    Memory, remembrance, the faculty of remembering. An abstract noun from memor.

  4. Old French
    11c.
    Established

    memoire1

    Mind, memory, remembrance. Also a memorial, a record.

  5. Anglo-French
    into Middle English
    Established

    memorie1

    The French form that carries memoria into English.

  6. English
    late 13c. on
    Established

    memory1

    Remembrance and fame first. The faculty by the late 14c. Commemoration about 1300. A span of living observation from the 1520s.

  7. Modern English
    1946, a fork
    Established

    memory1

    A device which stores information. A dated extension of the noun, not a new etymon. The faculty and the remembrance remain.

Senses through time

  1. Late 13c.

    Recollection, remembrance, awareness. Also fame, renown, reputation.1

    Established

  2. c. 1300

    Commemoration.1

    Established

  3. Late 14c.

    The faculty of remembering. The mental capacity of retaining and recalling.1

    Established

  4. 1520s

    A length of time within an individual’s consciousness or observation. Within living memory.1

    Established

  5. By 1817

    That which is remembered: anything fixed in or recalled to the mind. The sense is attested. A 19c. correctness dispute questioned whether this use was proper. That dispute is a usage judgment of the period.1

    Disputed

  6. 19c.

    A figurative extension to analogous physical processes.1

    Established

  7. 1946

    A device which stores information. This is the sense that dominates much modern technical talk. It does not erase the older faculty and remembrance senses. Do not collapse the word into RAM alone, or into nostalgia as a moral mood.1

    Established

Semantic change

  • remembrance and fame

    late 13c. to the late 14c.

    a faculty

    The word begins as recollection and as renown. The capacity to retain and recall is a later sense, not the first. Established1

  • a faculty

    1946

    a device

    The computer sense is a dated fork. It does not replace remembrance or the faculty. Established1

Cognates and neighbors

Resemblance is not lineage. Translation is not descent.

  • Sanskrit

    smarati4

    Remembers. Listed in the *(s)mer- family. Not a parent of the English noun.

    Cognate

  • Avestan

    mimarā4

    Mindful. Same listed family.

    Cognate

  • Greek

    μέριμνα4

    Care, thought. A cognate in the *(s)mer- list. Not the source of English memory.

    Cognate

  • Greek

    μέρμερος4

    Causing anxiety, cared for, baneful. Same listed family. Not μνήμη.

    Cognate

  • Serbo-Croatian

    mariti4

    To care for. Same listed family.

    Cognate

  • Welsh

    marth4

    Sadness, anxiety. Same listed family.

    Cognate

  • Old Norse

    Mímir4

    The name of a wisdom-figure beside a well. Listed in the family. Not this noun’s morphology.

    Cognate

  • Old English

    gemimor4

    Known. Same listed family. Not the source of the borrowed noun memory.

    Cognate

  • Old English

    murnan4

    To mourn, to remember sorrowfully. Same listed family.

    Cognate

  • Dutch

    mijmeren4

    To ponder. Same listed family.

    Cognate

  • English

    remember2

    Mid-14c., from Old French remembrer, from Latin rememorari. Same memor. The -b- is epenthesis. Not a child of the English noun.

    Parallel formation

  • English

    memorial3

    Late 14c., from Old French memorial and Latin memorialis, of or belonging to memory.

    Parallel formation

  • Greek

    μνήμη1

    Memory, remembrance. A related concept, not the Latin etymon of English memory. μιμνήσκω belongs with it. Handbooks often refer this family to *men-, to think. That assignment is not proved on this plate. English memory does not descend from this Greek word.

    Parallel formation

  • English

    nostalgia1

    A moral mood is not this noun. The late 13c. sense is remembrance, including fame. The late 14c. sense is a faculty. Nostalgia is not the etymology.

    False cognate

Read the text

  • Within living memory.1

    A length of time inside one person’s observation. Not a single literary sentence reopened here.

Two shores

Constellation

Elon Musk

Letter, remain, attention. Writing as remaining.

Soul’s Quest · · Primary source5,6

The LEXIS corpus already lists that cluster under Soul’s Quest and the collection memoir. Consciousness and psyche are live neighbor plates. This noun was still a miss scaffold beside them. Soul’s Quest is a neighbor door, not an etymology, and its boards are not copied. Entropy and Love is a Field hinge only. Memory is not that door’s lemma, and entropy is not deepened here. Neighbor plates hold consciousness, psyche, knowledge, understand, meaning, love, question, and civilization. The Index has no memory-42 object. Checked 14 October 2026. This plate does not invent one.

InterpretationA constellation of remaining and attention. LEXIS owns where the English noun came from.

Important to remember that we should not take civilization for granted

1 June 2023 · Primary source7

Post on X, 1 June 2023. The verb is remember. He does not gloss the noun memory. Primary text checked this sitting.

InterpretationInterpretation. He rarely glosses memory as a faculty. The attested registers here are hardware, and remembering not to forget civilization. He does not comment on Latin memoria or on Greek μνήμη.

Elon Musk

We cut our RAM in half for the Tesla AI5 chip (now 72GB of LP5) and 1/3 for AI6 (now 144GB of LP6). This was the only way to get enough volume for Optimus production and greatly reduces cost. As it turns out, we think this will have a negligible effect on Optimus performance, as memory bandwidth is a bigger limiting factor than total memory storage (bandwidth was held constant).

1 October 2026 · Primary source8

Post on X, 1 October 2026, a reply on Optimus and chip RAM. The whole post is quoted. The word memory is in the last sentence. Occurrence in the 1946 register. Primary text checked this sitting.

InterpretationOccurrence. Computer sense: memory as storage and as bandwidth. Not a faculty, and not an etymology.

Grok @Bot memory transfer

13 October 2026 · Primary source9

Post on X, 13 October 2026, over a product note about moving what another assistant had stored. Occurrence only, in a product register. Primary text checked this sitting.

InterpretationOccurrence. Memory as something a system can transfer. Not an etymology.

Micron has been reasonable regarding future memory prices, while others have been extortionate, which is something today’s customers won’t forget … Micron is making is the smart move for long-term customer loyalty.

13 October 2026 · Primary source10

Post on X, 13 October 2026. Quoted as posted, including the second sentence and its wording. Hardware prices, then the verb forget. Primary text checked this sitting.

InterpretationOccurrence. Memory as a commodity, and forget as a verb about customers. Not the faculty sense, and not an etymology.

Follow the number

Numerical analysis comes after language. Historical systems and modern English mappings are labeled. Misses are kept. Further calculation lives at CIPHER.

35 · miss

  • 35

    Modern mapping · miss

    Full reduction

    M4+E5+M4+O6+R9+Y7. Method named: full reduction. A=1 through I=9, then the cycle repeats.

    35. A miss. Modern mapping, found. Not historically intended in Latin memoria. Not a design, and not 42 or 69.

  • 89

    Modern mapping · miss

    English ordinal

    M13+E5+M13+O15+R18+Y25. Method named: English ordinal. A=1 through Z=26.

    89. A miss.

  • 28

    Modern mapping · miss

    English reverse reduction

    M5+E4+M5+O3+R9+Y2. Method named: English reverse reduction. Reverse ordinal, then the digital root of each letter.

    28. A miss.

  • 43

    Modern mapping · miss

    Full reduction of REMEMBER

    Method named: full reduction, on the verb.

    43. A miss. The verb does not carry a hit the noun missed.

  • 79

    Modern mapping · miss

    English ordinal of REMEMBER

    Method named: English ordinal, on the verb.

    79. A miss.

  • 47

    Modern mapping · miss

    English reverse reduction of REMEMBER

    Method named: English reverse reduction, on the verb.

    47. A miss.

  • 41

    Modern mapping · miss

    Full reduction of MEMORIAL

    Method named: full reduction, on memorial.

    41. A miss.

  • 146

    Historical system · miss

    Greek isopsephy of μνήμη

    μ40+ν50+η8+μ40+η8. Method named: Greek isopsephy. Historical letter-values, applied here only as a labeled sum.

    146. A miss. μνήμη is not the etymon of English memory. No English cipher is run on Latin memoria or on this Greek word. The sum is not proof of ancient intent, and it is not 42 or 69.

Ask the next question

Ask the next question

  • When English borrowed memoria’s line, what did it keep from fame and renown that the later faculty sense partly forgets?
  • What changes when memory stops meaning a faculty and starts meaning a device (1946), and which of Elon’s public uses still hear the older word?
  • If MEMORY full-reduces to 35 and none of the house methods hit 42 or 69, what should a meaning instrument do with a word that refuses the rhyme?

Neighbors

  • Soul’s Quest: Writing as remaining. Not this etymology, and its boards are not copied.
  • Entropy and Love: A Field hinge only. Memory is not that door’s lemma. Entropy is not deepened here.
  • Corpus: Where letter, remain, and attention are already named.
  • CIPHER: Owns the methods. LEXIS only records the labeled misses.

Notes

Notes
  1. Douglas Harper, “memory,” Online Etymology Dictionary. Late 13c., from Anglo-French memorie and Old French memoire, and directly from Latin memoria, from memor. Faculty sense late 14c. Computer sense from 1946. Fame is among the early senses. The 1817 sense of ‘that which is remembered’ drew a 19c. correctness dispute.
  2. Douglas Harper, “remember,” Online Etymology Dictionary. Mid-14c. remembren, from Old French remembrer, from Latin rememorari, re- + memorari, from memor. The -b- is epenthesis.
  3. Douglas Harper, “memorial,” Online Etymology Dictionary. Late 14c., from Old French memorial and Latin memorialis, of or belonging to memory.
  4. Douglas Harper, “*(s)mer-,” Online Etymology Dictionary, root (1), to remember. The family list used here: Sanskrit smarati, Avestan mimarā, Greek merimna and mermeros, Latin memoria and memor, Serbo-Croatian mariti, Welsh marth, Old Norse Mímir, Old English gemimor and murnan, Dutch mijmeren. Established as Etymonline’s reconstruction, not as a sound-law proof on this plate. Greek μνήμη is not in that descent.
  5. Soul’s Quest, public home, answering on 14 October 2026. Crosslinked as the world already named on the LEXIS corpus for letter, remain, and attention. Boards not copied. Not an etymology of memory.
  6. LEXIS corpus page. The recurring cluster ‘letter / remain / attention’ is filed under Soul’s Quest and the collection memoir, as writing that remains. Constellation appearance, not an etymology.
  7. Elon Musk, post, 1 June 2023. “Important to remember that we should not take civilization for granted.” The verb remember. Primary text checked 14 October 2026. Not an etymology of memory.
  8. Elon Musk, post, 1 October 2026. The RAM cut for the Tesla AI5 and AI6 chips, then: memory bandwidth is a bigger limiting factor than total memory storage. Primary text checked 14 October 2026. Occurrence in the 1946 register. Not an etymology.
  9. Elon Musk, post, 13 October 2026. “Grok @Bot memory transfer.” Occurrence in a product register. Primary text checked 14 October 2026. Not an etymology.
  10. Elon Musk, post, 13 October 2026. “Micron has been reasonable regarding future memory prices, while others have been extortionate, which is something today’s customers won’t forget …” The following sentence is quoted as posted, including its wording. Primary text checked 14 October 2026. Not an etymology.

Last verified 2026-10-14