10 letters · 12 points in Scrabble
verb undergo menstruation
originEtymology tree English menstruum Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātuslbor. English -ate English menstruate From menstruum + -ate (adjective-forming usffix).
Etymology from Wiktionary, CC BY-SA 3.0