nomo-, nom-, -nomy, -onomy, -nome, -nomic, -nomous, -nomical, -nomically

(Greek: law, order, arrangement, systematized knowledge of [something]; usage)

Don’t confuse this element with the Latin nomo- which means "name" or another Greek nomo- which means "meadow" or "pasture".

uninomial
Like mononymy, this is a term which refers to anyone who uses only one word for a name; such as, Madonna, Pelé, and Cher.