12 letters · 16 points in Scrabble
noun the condition of being folded inward or sheathed
noun the folding in of an outer layer so as to form a pocket in the surface
originEtymology tree English invaginate 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 -ion English invagination From invaginate + -ion.
Etymology from Wiktionary, CC BY-SA 3.0