theologise vs theologiser

theologise is not a noun while theologiser is a noun.

Word	Noun	Adjective	Verb	Adverb
theologise	No	No	Yes	No
theologiser	Yes	No	No	No

theologise (noun)	theologiser (noun)
	someone who is learned in theology or who speculates about theology

theologise (verb)	theologiser (verb)
make theoretical speculations about theology or discuss theological subjects
treat from a theological viewpoint or render theological in character