見み定さだめる

ichidan verb, transitive verb

ascertain; confirm; make sure of

Used when carefully observing or examining something to determine the truth, facts, or true nature. Often implies a deliberate, focused act of verification.

• 相あい手ての実じつ力りょくを見み定さだめる必ひつ要ようがある。

  We need to ascertain the opponent's true ability.

• 彼かれはその情じょう報ほうが正ただしいかどうかを見み定さだめた。

  He made sure whether the information was correct.