Sentence:  His bowstring slackened, languid Love, / Leaning his cheek upon his hand, / Droops both his wings, regarding thee, / And so would <WSD>languish</WSD> evermore, / Serene, imperial Eleänore. 
Meaning of the word marked with <WSD> tags:  To affect a languid air, especially disingenuously. (from 18th c.)