"affecting the sense of smell in a pleasing manner, having a noticeable perfume," mid-15c., from Latin fragrantem (nominative fragrans) "sweet-smelling," present participle of fragrare "smell strongly, emit (a sweet) odor," from Proto-Italic *fragro-, from PIE root *bhrag- "to smell" (source also of Old Irish broimm "break wind," Middle High German bræhen "to smell," Middle Dutch bracke, Old High German braccho "hound, setter;" see brach). Often used figuratively. Usually of pleasing or agreeable smells, but sometimes ironic. Related: Fragrantly.
mid-14c., "an odor," from Old French flaire "odor or scent," especially in hunting, "fragrance, sense of smell," from flairier "to give off an odor; stink; smell sweetly" (Modern French flairer), from Vulgar Latin *flagrare, a dissimilation of Latin fragrare "emit (a sweet) odor" (see fragrant). Sense of "special aptitude" is American English, 1925, probably from hunting and the notion of a hound's ability to track scent.
c. 1500, odeferus, "fragrant," a shortened variant of odoriferous. Related: Odiferously; odiferousness.