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supplementation

noun

  1. add to, enhance, adding to
L227301 on Wikidata ↗

Wiktionary

noun

Etymology: Etymology tree English supplement Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English supplementation From supplement + -ation.

  1. The act of supplementing
  2. Something added as a supplement