gorgeously (adv.)

c. 1500, "splendid, showy, sumptuously adorned" (of clothing), from French gorgias "elegant, fashionable," a word of unknown origin; perhaps a special use of gorgias "necklace" (and thus "fond of or resembling jewelry"), from Old French gorge "throat," also "something adorning the throat" (see gorge (n.)). A connection to the Greek proper name Gorgias (supposedly in reference to a notorious sophist) also has been proposed. Related: Gorgeousness.

common adverbial suffix, forming from adjectives adverbs signifying "in a manner denoted by" the adjective, Middle English, from Old English -lice, from Proto-Germanic *-liko- (cognates: Old Frisian -like, Old Saxon -liko, Dutch -lijk, Old High German -licho, German -lich, Old Norse -liga, Gothic -leiko); see -ly (1). Cognate with lich, and identical with like (adj.).

Weekley notes as "curious" that Germanic uses a word essentially meaning "body" for the adverbial formation, while Romanic uses one meaning "mind" (as in French constamment from Latin constanti mente). The modern English form emerged in late Middle English, probably from influence of Old Norse -liga.