Is 'motet' English, or is it actually French?

'Motet' is a word borrowed from French 'motet'. The word entered the English language some time around the 14th century.

motet [noun] [14th century]

A polyphonic choral composition on a sacred text usually without instrumental accompaniment

See 'motet' on the Loan Words Map

See more loan words from French.

Etymology: Middle English, from Middle French, diminutive of 'mot'

See more loan words from 1300s.