Odor \O"dor\, n. [OE. odor, odour, OF. odor, odour, F. odeur, fr. L. odor; akin to olere to smell, Gr. ?, Lith. ? Cf. {Olfactory}, {Osmium}, {Ozone}, {Redolent}.] [Written also {odour}.] Any smell, whether fragrant or offensive; scent; perfume. Meseemed I smelt a garden of sweet flowers, That dainty odors from them threw around. --Spenser. {To be in bad odor}, to be out of favor, or in bad repute.