12 letters · 21 points in Scrabble
verb perform less well or with less success than expected
originEtymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Indo-European *(H)n̥dʰí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dʰér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- English achieve English underachieve From under- + achieve.
Etymology from Wiktionary, CC BY-SA 3.0