Sentence:  The harlequinade ceases for the moment, and a two-character tragedy begins with the shepherds Thyrsis and <WSD>Corydon</WSD>, whose names derive from ancient pastoral poetry. 
Meaning of the word marked with <WSD> tags:  (from=Greek), notably used as a stock name for a shepherd in pastorals, in particular a shepherd whose love for a boy is described in Virgil's "(Eclogues)".