robe (n.) Look up robe at Dictionary.com
late 13c., from Old French robe "long, loose outer garment," originally "plunder, booty," from a Germanic source (cf. Old High German rouba "vestments," presumably those taken from the enemy as spoils), from West Germanic *rauba, the stem that also yielded rob (v.). Metonymic sense of "the legal profession" is attested from 1640s.
robe (v.) Look up robe at Dictionary.com
late 14c., from robe (n.). Related: Robed; robing.