- engagement (n.)
[engagement 词源字典]
- 1620s, "formal promise," from engage + -ment. Meaning "a battle or fight between armies or fleets" is from 1660s; sense of "state of having entered into a promise of marriage" is from 1742; meaning "appointment" is from 1806. Engagement ring attested by 1863.[engagement etymology, engagement origin, 英语词源]