godan verb (-su), transitive verb
consult; talk over
Rare, somewhat formal verb for consulting someone or discussing a matter. In modern Japanese, 相談する or 話し合う are far more common. Cross-referenced with 議する, which is a slightly more common variant.
See also: 議する
この問題については、まず上司に議すべきだ。
You should first consult your boss about this matter.
彼は友人と将来の計画を議した。
He talked over his future plans with a friend.