-arian
From Longman Dictionary of Contemporary English-arian-arian /eəriən $ eriən/ suffix 1 [in nouns]XX someone who believes in or does a particular thing a vegetarian (=someone who does not eat meat) a librarian (=someone who works in a library)2 [in adjectives]XX for people of this type, or relating to them a vegetarian restaurantExamples from the Corpus-arian• an egalitarian societyOrigin -arian Latin -arius; -ARY