9 letters · 14 points in Scrabble
verb disconnect or separate
adjective having the coupling undone
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English coupled English uncoupled From un- + coupled.
Etymology from Wiktionary, CC BY-SA 3.0