Meaning

verb live in the country and lead a rustic life

verb send to the country

verb suspend temporarily from college or university, in England

originBorrowed from Latin rūsticātus, perfect active participle of rūsticor (“to live in the countryside”) (see -ate (verb-forming suffix)), originally in the same sense. First attested in the mid-17th century. By surface analysis, rustic + -ate (verb-forming suffix).

Etymology from Wiktionary, CC BY-SA 3.0