1620s, "to reside in the country," back-formation from rustication, or else from Latin rusticationem (nominative rusticatio) "act or fact of living in the country," noun of action from past participle stem of rusticari "live or stay in the country," from rusticus (see rustic). Meaning "send into the country" is from 1714.
英英释意
1. the condition naturally attaching to life in the country
2. the construction of masonry or brickwork in a rustic manner
3. the action of retiring to and living in the country
4. temporary dismissal of a student from a university
