simplex (adj.)

"characterized by a single part," 1590s, from Latin simplex "single, simple, plain, unmixed, uncompounded," literally "one-fold," from PIE compound of root *sem- (1) "one; as one, together with" + *plac- "-fold," from PIE root *plek- "to plait." Compare duplex.

The noun is attested from 1892 in grammar, "simple uncompounded word," from a sense of the Latin word. Simplex munditis is a Latin phrase implying "elegantly simple."

updated on November 03, 2022