Undone
来自Big Physics
Old English undōn (see un-2, do1).
wiktionary
From un- + done.
From Middle English undon, from Old English ondōn, from Proto-Germanic *andadōnaz, past participle of *andadōną(“to undo”), equivalent to undo + -en(past participle ending). Cognate with Dutch ontdaan(“stripped, undone, upset”).
etymonline
undone (adj.)
"not accomplished," c. 1300, from un- (1) "not" + done. The same word meaning "destroyed" is recorded from mid-14c., past-participle adjective from undo.
