Noun	Verb	Adjective
act/action	act	( in)active
amusement	amuse	(un)amusing
appreciation	appreciate	(un)appreciative
attendance /attendant	attend	(in)attentive
day		daily
enjoyment	enjoy	(un)enjoyable
entrance	enter
entertainment	entertain	entertaining
excitement	excite	(un)exciting
happiness		(un)happy
humour	humour	humorous
popularity		(un)popular