和英辞書

懇ろ

adv

(archaic) wholeheartedly

彼は懇ろに彼女にプロポーズした。

He proposed to her wholeheartedly.

意味（1）

(archaic) wholeheartedly

c. 759, Man'yōshū (book 9, poem 1723)

kawazu naku Mutsuta-no-kawa no kawayagi no nemokoro miredo akanu kawa ka moNo matter how heartily I look at the heart of the willows by the river along the Mutsuta River where frogs cry, I never get tired of that river.