common (English)

Where does "common" come from?

The English word 'common' traces its roots back to the Proto-Indo-European root '*mey-', meaning to exchange or change[1]. This evolved into the reconstructed form '*ḱom-moy-ni-s', meaning 'held in common'[1]. Through Latin 'commūnis', meaning 'common, public, general', the term passed into Old French and Anglo-Norman as 'comun'[1]. Middle English adopted this form as 'comun', which eventually developed into modern English 'common'[1]. Along the way, the word's ancient Germanic relatives yielded forms such as Old English 'ġemǣne'[1].

Open questions

The Old French term comun is considered rare in the Gallo-Romance languages, but it was reinforced as a Carolingian calque of Proto-West Germanic *gamainī. [1]

Full etymology tree

common (English), 'Mutual; shared by more than one.'
- borrowed comun (Middle English), 'Shared, common; belonging to all (in a group).'
  - borrowed comun (Anglo-Norman)
    - influenced by (Old French)
      - calque *gamainī (Proto-West Germanic), 'common'
    - inherited comun (Old French), 'common'
      - inherited communis (Latin), 'common, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together'
        inherited co(m)moinis (Old Latin)
        inherited *kommoinis (Proto-Italic), 'common'
        derived *ḱom-moy-ni-s (Proto-Indo-European)
        derived *mey- (Proto-Indo-European), 'to strengthen'

Ancestors

comun (Middle English)
comun (Old French)
communis (Latin)
*mey- (Proto-Indo-European)

Cognates and doublets

gmina (English)
mean (English)
*gamainī (Proto-West Germanic)

Sources

Updated September 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris