ology vs bailiwick

ology and bailiwick both are nouns.

Word	Noun	Adjective	Verb	Adverb
ology	Yes	No	No	No
bailiwick	Yes	No	No	No

As nouns, bailiwick is a hypernym of ology; that is, bailiwick is a word with a broader meaning than ology:

ology: an informal word (abstracted from words with this ending) for some unidentified branch of knowledge
bailiwick: a branch of knowledge

Other hypernyms of ology include discipline, field, field of study, study, subject, subject area, subject field.

ology (noun)	bailiwick (noun)
an informal word (abstracted from words with this ending) for some unidentified branch of knowledge	a branch of knowledge
	the area over which a bailiff has jurisdiction