√DEW root. “go wrong, fail”
A Sindarin-only root in linguistic notes from 1959 meaning “go wrong, fail” with the basic sense of “miss mark, go (or send) wrong, fall short or beside ([one’s] aim, what is due or proper)” (PE17/151); in a marginal note Tolkien also wrote “go awry, ill, wrongly”. Its Quenya equivalent was √LOY.
Reference ✧ PE17/151 ✧ DEWE “go wrong, fail”