<Tr> <Th> Composer (s) </Th> <Td> Unknown; speculated to be W. de Wycombe </Td> </Tr> <Tr> <Th> Lyricist (s) </Th> <Td> Unknown; speculated to be W. de Wycombe </Td> </Tr> <P> "Sumer Is Icumen In" (also called the Summer Canon and the Cuckoo Song) is a medieval English round or rota of the mid-13th century . </P> <P> The title translates approximately to "Summer Has Come In" or "Summer Has Arrived" (Roscow 1999,). The song is composed in the Wessex dialect of Middle English . Although the composer's identity is unknown today, it may have been W. de Wycombe . The manuscript in which it is preserved was copied between 1261 and 1264 (Wulstan 2000, 8). </P>

In what medieval language is this work sung sumer is icumen