"choral composition on a sacred text, intended to be sung in a Church service," late 14c., from Old French motet (13c.), diminutive of mot "word" (see mot), or from Medieval Latin motetum, diminutive of motto.
Entries linking to motet
mot n.
"a brief and forcible or witty saying," 1813; earlier "a motto" (1580s, a sense now obsolete), from French mot (12c.) "remark, short speech," literally "word," cognate of Italian motto, from Medieval Latin muttum "a word," from Latin mutum "a grunt, a murmur" (see mutter). Also compare bon mot. Mot juste (1912) is French, literally "exact word," the precisely appropriate expression in some situation.
The mot juste is an expression which readers would like to buy of writers who use it, as one buys one's neighbour's bantam cock for the sake of hearing its voice no more. [Fowler]