c.1300, from O.Fr. devin, from L. divinus "of a god," from divus "a god," related to deus "god, deity" (see Zeus). Weakened sense of "excellent" had evolved by late 15c.
"to conjure, to guess," originally "to make out by supernatural insight," early 14c., from L. divinus (see divine (adj.)), which also meant "soothsayer." Related: Divined; divining. Divining rod (or wand) attested from 1650s.