overarch vs prevail

overarch and prevail both are verbs.

Word	Noun	Adjective	Verb	Adverb
overarch	No	No	Yes	No
prevail	No	No	Yes	No

As verbs, prevail is a hypernym of overarch; that is, prevail is a word with a broader meaning than overarch:

Other hypernyms of overarch include dominate, predominate, reign, rule.

overarch (verb)	prevail (verb)
form an arch over	use persuasion successfully
be central or dominant	prove superior
	continue to exist
	be valid, applicable, or true
	be larger in number, quantity, power, status or importance