Etymology

-ion

Today it means: An action or process, or the result of an action or process. Full definition →

Middle French -tion ← Latin -tiō
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-ion · suffix1

  1. Latin · derived from-tiō
  2. Middle French · derived from-tion
  3. English today-ion

Reanalysed from -ation, -tion, from Middle French -tion, -cion, from Latin -tiō. By surface analysis, this suffix is added to verbs derived from Latin perfect participle stems.

-ion · suffix2

Possibly reanalysed from inion, which is of Ancient Greek origin. In many cases also analysable as the neuter form of an Ancient Greek adjective in -ιος (-ios).

-ion · suffix3

  1. Ancient Greek · derived fromἀπόγειον“apogee”
  2. English today-ion

From Ancient Greek ἀπόγειον (apógeion, “apogee”), containing -ιον (-ion). Compare also -ium.

Words from the same roots

Ancient Greekἀπόγειον all →

apogee

Etymology from Wiktionary, CC BY-SA 4.0.