lodgment vs fixedness

lodgment and fixedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
lodgment	Yes	No	No	No
fixedness	Yes	No	No	No

As nouns, fixedness is a hypernym of lodgment; that is, fixedness is a word with a broader meaning than lodgment:

Other hypernyms of lodgment include fastness, fixity, fixture, secureness, allegation.

lodgment (noun)	fixedness (noun)
the state or quality of being lodged or fixed even temporarily	the quality of being fixed in place as by some firm attachment
	the quality of being fixed and unchangeable
	remaining in place