To accept or resign oneself to a situation (often unwillingly); to bear or endure something.
不本意ながら罰を甘んじて受けることにした。
Although unwilling, he decided to accept the punishment.
現状に甘んじるな、常に改善を目指せ。
Don't be satisfied with the current situation; always aim to improve.
彼は一時の失敗を甘んじて受け、次の機会に備えた。
He accepted his temporary failure and prepared for the next opportunity.