Ambiguous
early 16th century (in the sense ‘indistinct, obscure’): from Latin ambiguus ‘doubtful’ (from ambigere ‘waver, go around’, from ambi- ‘both ways’ + agere ‘to drive’) + -ous.
wiktionary
From Latin ambiguus(“moving from side to side, of doubtful nature”), from ambigere(“to go about, wander, doubt”), from ambi-(“around, about, on both sides”) + agere(“to drive, move”).
etymonline
ambiguous (adj.)
"of doubtful or uncertain nature, open to various interpretations," 1520s, from Latin ambiguus "having double meaning, shifting, changeable, doubtful," adjective derived from ambigere "to dispute about, contend, debate," literally "to wander, go about, go around," figuratively "hesitate, waver, be in doubt," from ambi- "about" (from PIE root *ambhi- "around") + agere "drive, lead, act" (from PIE root *ag- "to drive, draw out or forth, move"). First attested in Sir Thomas More (1528); related ambiguity dates to c. 1400. Related: Ambiguously; ambiguousness.
