Толковый словарь английского языка Oxford English Reference - ar

symb. Chem. the element argon. AR 1. suffix. 1 forming adjectives (angular; linear; nuclear; titular). 2 forming nouns (scholar). Etymology: OF -aire or -ier or L -aris 2. suffix forming nouns (pillar). Etymology: F -er or L -ar, -are, neut. of -aris 3. suffix forming nouns (bursar; exemplar; mortar; vicar). Etymology: OF -aire or -ier or L -arius, -arium 4. suffix assim. form of -ER(1), -OR(1) (liar; pedlar). AR abbr. US Arkansas (in official postal use).