Mid 17th century; earliest use found in Thomas Blount (1618–1679), antiquary and lexicographer. From classical Latin maxillāris belonging to the jaw, molar from maxilla + -āris.
Definition of maxillar in US English:
maxillar
adjectivemakˈsɪlə
Anatomy Medicine rare
Maxillary.
Origin
Mid 17th century; earliest use found in Thomas Blount (1618–1679), antiquary and lexicographer. From classical Latin maxillāris belonging to the jaw, molar from maxilla + -āris.