auta- (2) vb. "invent, originate, devise" (GAWA/GOWO) This could be obsoleted by # 1 above; on the other hand, the verbs would be quite distinct in the past tense, where auta- #2 would likely have the straightforward form *autanë.
Telerin
auta-
verb. to go, depart, pass away
auta- (1) vb. "go away, leave" (leave the point of the speaker's thought); old "strong" past tense anwë, usually replaced by vánë, perfect avánië but when the meaning is purely physical "went away (to another place)" rather than "disappear", the past tense oantë, perfect oantië was used. Past participle vanwa "gone, lost, no longer to be had, vanished, departed, dead, past and over" (WJ:366)