SOURCE 01supportshistorical dictionary
Arithmo- — Word History
Publishes the root followed in the linear path.
Word History: *h₂rei-- AUTHOR / EDITOR
- Merriam-Webster Editors
- YEAR
- 2026
- PUBLISHER
- Merriam-Webster
PERMANENT DISPUTE RECORD
ALL DISPUTES ↗CLAIM / COUNTERCLAIM / LIMITRECORD 149
DISPUTE
RECORD.
One scholarly question. Every attached source. The present editorial state, without pretending the last word has been written.
openproposed
Is the deepest counting root *h₂rei- or *erei-dhmo- from *re-?
The references use different levels and notations: Merriam-Webster derives the Greek base through *h₂rei-, while Etymonline prints an expanded *erei-dhmo- formation tied to *re-.
WORD UNDER REVIEWDISPUTE 149
arithmetic
/əˈrɪθmətɪk/ · noun · adjective
The art or practice of counting and calculation; transmitted from Greek arithmos “number” through Latin and French.
01
DIRECT CLAIM EVIDENCE
2 SOURCES WITH A STANCE
A citation is not a vote. Each record says whether the work supports, challenges, contradicts, or contextualizes the position—and identifies the exact locus used.
SOURCE 02challengeshistorical dictionary
Arithmetic — Origin and history
Publishes the competing formation and notation.
Headword history: *erei-dhmo- from *re-- AUTHOR / EDITOR
- Douglas Harper
- YEAR
- 2026
- PUBLISHER
- Online Etymology Dictionary
02 / EDITORIAL STATE
THE QUESTION REMAINS OPEN.
- CONFIDENCE
- proposed
- STATUS
- open
- LEGACY SOURCE SUMMARY
- The sources agree on a counting family but not one directly interchangeable string representation.
The linear route uses *h₂rei- and explicitly records the competing expanded formation.