Crossword puzzle clue "abnormal prefix"

wandering or straying

(Latin) one of three feathers springing from the base of the primaries

of or pertaining to an atrium, a square hall lighted from above, into which rooms open at one or more levels

not typical, also ATYPIC

(Greek) an eating disorder in which binge eating is followed by depression and guilt, self-induced vomiting and purging, etc., also BULIMUS, BULIMY