‘Somer is y-comen in’ (also ‘Sumer is icumen in’, i.e. ‘Summer has come in’) is an altogether more uplifting medieval lyric about summer, designed to be sung as a ’round’ with several people. The poet entreats the cuckoo to sing loudly as the seed grows and the meadows blossom, and the wood now springs into leaf. The ewe bleats after the lamb, the cow after the calf, the bullock leaps, and the buck cavorts. (Well, I say ‘cavorts’, but the Middle English ‘vertëth’ has also been interpreted or translated as ‘farts’; either arguably fits, given the subject of the poem, as both are symbols of health and energy, we suppose.) The last line, ‘Ne swik thou never nou!’, is an entreaty to the cuckoo never to stop singing.