stumbler vs footer

stumbler and footer both are nouns.

Word	Noun	Adjective	Verb	Adverb
stumbler	Yes	No	No	No
footer	Yes	No	No	No

As nouns, footer is a hypernym of stumbler; that is, footer is a word with a broader meaning than stumbler:

Other hypernyms of stumbler include pedestrian, walker.

stumbler (noun)	footer (noun)
a walker or runner who trips and almost falls	a printed note placed below the text on a printed page
someone who makes mistakes because of incompetence	a person who travels by foot
	(used only in combinations) the height or length of something in feet