Etymology

-or

Today it means: Creates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed. Full definition →

Middle English -our ← Old French -eor ← Latin -ātor
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-or · suffix1

  1. Latin · derived from-ātor
  2. Old French · derived from-eor
  3. Middle English · inherited from-our
  4. English today-or

From Middle English -our, from Old French -eor, from Latin -ātor; reinforced by Old French -or and its source, Latin -tor, -tōrem.

-or · suffix2

  1. Latin · derived from-or
  2. English today-or

From Latin -or.

Etymology from Wiktionary, CC BY-SA 4.0.