GRAPH-WIDE SEARCH
MEASURE THE GRAPH ↗NOT JUST A DICTIONARY LOOKUP
6 EVIDENCE COLLECTIONSSEARCH
THE GRAPH.
Find a modern word—or search sideways through reconstructed roots, historical forms, meanings, languages, scholars, sources, claims, disputes, and witnesses.
013
MODERN ENTRY POINTS
WORD DOSSIERS
nounexact headword
calculus
A mathematical system, a method of reasoning, or a bodily stone; borrowed from a Latin word for a pebble used in counting.
OPEN THE FULL LINEAGE ↗verbexact historical form
calculate
To determine mathematically or estimate, borrowed from a Latin family built around counting with pebbles.
OPEN THE FULL LINEAGE ↗nounexact historical form
calculator
A person or device that calculates, inherited from a medieval human-reckoner word and the Latin counting-pebble family.
OPEN THE FULL LINEAGE ↗025
ATTESTED / RECONSTRUCTED / BOUNDARY
HISTORICAL FORMS
●
Latin / Indo-European
calculus
pebble; counting-board pebble; calculation; account
- DATE
- Latin antiquity
- MATCH
- exact historical form
- DOSSIERS
- 3
Present-Day English / Indo-European
calculus
a mathematical method; a system of reckoning; also a bodily stone
- DATE
- 1666–today
- MATCH
- exact historical form
- DOSSIERS
- 1
Beyond secure reconstruction
UNKNOWN
The route beyond calculus remains unsettled.
- DATE
- before the disputed stone-word connection
- MATCH
- gloss
- DOSSIERS
- 1
Beyond secure reconstruction
UNKNOWN
No single deeper ancestor is selected beyond the disputed calculus and calx analysis.
- DATE
- before the disputed Latin stone route
- MATCH
- gloss
- DOSSIERS
- 1
Beyond secure reconstruction
UNKNOWN SUBSTRATE SOURCE
A possible non-Indo-European source shared by Latin calculus and Greek káchlēx
- DATE
- undated Mediterranean substrate hypothesis
- MATCH
- gloss
- DOSSIERS
- 0
038
WHERE INTERPRETATION IS TESTED
CLAIMS & DISPUTES
SCHOLARLY DISPUTES / 5
openproposedexact word
Is Latin calculus securely a diminutive of calx?
No. Festus accepted the traditional limestone derivation, but the phonology and meanings are problematic. The edge remains proposed.
openproposedexact word
Could Latin calculus and Greek káchlēx share a non-Indo-European source?
Yes, as a proposal. Beekes' substrate diagnostics for Greek variants motivate a possible common source, but no form is securely reconstructed.
openproposedposition text
Is calculus securely a diminutive of calx “limestone”?
Not securely. The traditional analysis is morphologically and semantically irregular; an alternative links Latin calculus and Greek stone words through a possible shared substrate source.
openproposedposition text
Does calculator securely descend beyond Latin calculus to calx?
The calculator-to-calculare-to-calculus chain is established, but the traditional calculus-to-calx derivation is proposed. A possible shared Mediterranean substrate source remains a competing route.
resolvedestablishedposition text
Were Roman calculations literally made with stones?
Latin calculus did name a pebble used on a counting board, and the computation sense developed from that practice.
CONTRARIAN TRUTHS / 3
RANK 211GRADE A−exact ranked word
Higher mathematics began with a pebble.
Latin calculus named a counting-board pebble and a calculation. Its deeper stone ancestry is still disputed between a limestone derivation and a possible shared Mediterranean substrate source.
RANK 5GRADE Aexact revealing root
Calculation began with a pebble in the hand.
Latin calculus was a small stone used for reckoning before calculation became abstract.
RANK 185GRADE Aranked reveal
A calculator was a person before it was a device.
Middle English calkelatour named someone who counted or computed. The machine later inherited the human arithmetic agent's title.
042
BOOKS / DICTIONARIES / ARTICLES / DATABASES
SOURCES
052
FIRST USES & HISTORICAL OBJECTS
ATTESTATION WITNESSES
SOURCE REPORTEDlexical corpus
Source-reported Latin lexical record
calculus / calculate / Latin antiquity
Calculus — Word History and Etymology Noteexact attested form / OPEN RECORD ↗SOURCE REPORTEDlexicographic first use
Merriam-Webster lexicographic first-use record for calculus
calculus / calculus / 1666
Calculus — Word History and Etymology Noteexact attested form / OPEN RECORD ↗06
SEARCH IS DISCOVERY, NOT PROOF
EVERY RESULT OPENS A PERMANENT EVIDENCE RECORD.
Matching text only locates a record. It does not raise confidence, settle a dispute, establish cognacy, or turn a source report into direct inspection. Follow the result into its citations and editorial limits.