- -an [ən] suffix also -ean -ian[: Old French; Origin: -en, from Latin -anus]1.) [in adjectives and nouns]someone or something of, from, or connected with a particular thing, place, or person▪ suburban▪ Jamesian2.) [in nouns]someone skilled in or studying a particular subject▪ a historian (=someone who studies history)
Dictionary of contemporary English. 2013.