means A smell, especially a distinct or strong one that the nose picks up from the air.

from Straight from Latin 'odor,' meaning smell or scent, which came into English through Old French 'odor.' The same root breathes through 'odorous,' 'malodorous,' and 'deodorant,' and it's likely a distant cousin of Greek 'ozein' (to smell) and even 'ozone,' that sharp electric tang named for its noticeable reek.