Endo-

prefix

prefix ·Rare ·Advanced level

Definitions

Prefix

1
Alternative form of end-. alt-of, alternative, morpheme

Synonyms

em en end ento im in

Antonyms

ecto ex- exo out

Etymology

From Ancient Greek ἔνδον (éndon, “inner; internal”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.