11 letters · 24 points in Scrabble
noun formation of a word by means of a suffix
originEtymology tree English suffix 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 suffixation From suffix + -ation.
Etymology from Wiktionary, CC BY-SA 3.0