godan verb (-u, special)
to probe someone's true feelings; to sound out someone's heart
Rare, archaic verb. Describes trying to ascertain what someone really thinks or feels, often by indirect questioning. Not used in modern conversation.
古い文献では、相手の本心を裏問う場面が描かれている。
In old texts, there are scenes where someone probes another's true feelings.
Compound of 裏 (ura, 'back, hidden side') and 問う (tou, 'to ask, question'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of questioning someone's hidden feelings.