godan verb (-ru), intransitive verb
apologize sincerely; offer a heartfelt apology
Expresses a deep, earnest apology, often with a sense of humility. Stronger than 謝る (あやまる).
彼は自分の過ちを詫び入った。
He sincerely apologized for his mistake.
心から詫び入る気持ちを伝えた。
I conveyed my feelings of heartfelt apology.