supplementation
noun
- add to, enhance, adding to
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.
- The act of supplementing
- Something added as a supplement