10 letters · 20 points in Scrabble
noun a statement asserting the existence or the truth of something
originEtymology tree English avouch Proto-Indo-European *-mn̥ Proto-Indo-European *-mn̥tom Proto-Italic *-mentom Latin -mentum Old French -mentbor. Middle English -ment English -ment English avouchment From avouch + -ment.
Etymology from Wiktionary, CC BY-SA 3.0