theologizer vs bookman

theologizer and bookman both are nouns.

Word	Noun	Adjective	Verb	Adverb
theologizer	Yes	No	No	No
bookman	Yes	No	No	No

As nouns, bookman is a hypernym of theologizer; that is, bookman is a word with a broader meaning than theologizer:

theologizer: someone who is learned in theology or who speculates about theology
bookman: a learned person; someone who by long study has gained mastery in one or more disciplines

Other hypernyms of theologizer include scholar, scholarly person.

theologizer (noun)	bookman (noun)
someone who is learned in theology or who speculates about theology	a learned person; someone who by long study has gained mastery in one or more disciplines