12 letters · 20 points in Scrabble
adjective inadequate in number of workers or assistants etc.
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 staffed English understaffed From under- + staffed.
Etymology from Wiktionary, CC BY-SA 3.0