Transcribed from "Sumer is Icumen In, London, British Library, MS Harley 978, f. 11v".
Sumer is icumen in Lhude sing cuccu! Groweþ sed and bloweþ med And springþ þe wude nu. Sing cuccu! Awe bleteþ after lomb Lhouth after calve cu. Bulluc sterteþ, bucke ferteþ Murie sing, cuccu! Cuccu, cuccu, Wel singes þu, cuccu. Ne swik þu naver nu! Sing cuccu nu, sing cuccu! Sing cuccu nu, sing cuccu!Maintainer: Sean B. Palmer