devastate: [17] Etymologically as well as semantically, devastate is related to ‘lay waste’. It comes from the past participle of Latin dēvāstāre, a compound verb formed from the intensive prefix dē- and vāstāre ‘lay waste’. This was a derivative of vāstus ‘waste’, source of English waste. => vast, waste[devastate etymology, devastate origin, 英语词源]
1630s, perhaps a back-formation from devastation. Apparently not common until 19c.; earlier verb form devast is attested from 1530s, from Middle French devaster. Related: devastated; devastating.