"having a good sense of smell, having well-developed olfactory organs," 1878, from French osmatique, apparently coined by Paul Broca, from Greek osmē "smell, scent, odor" from PIE root *hed- "to smell" (see odor). Related: Anosmatic.
c. 1300, wawil-eghed, wolden-eiged, "having very light-colored eyes," also "having parti-colored eyes," from Old Norse vagl-eygr "having speckled eyes," from vagl "speck in the eye; beam, upper cross-beam, chicken-roost, perch," from Proto-Germanic *walgaz, from PIE *wogh-lo-, suffixed form of root *wegh- "to go, move, transport in a vehicle." The prehistoric sense evolution would be from "weigh" to "lift," to "hold, support." Meaning "having one or both eyes turned out" (and thus showing much white) is first recorded 1580s.