dominate vs overarch

dominate and overarch both are verbs.

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

As verbs, overarch is a hyponym of dominate; that is, overarch is a word with a more specific, narrower meaning than dominate:

Other hyponyms of dominate include override, outbalance, outweigh, overbalance, preponderate.

dominate (verb)	overarch (verb)
have dominance or the power to defeat over	form an arch over
be larger in number, quantity, power, status or importance	be central or dominant
be in control
look down on
be greater in significance than