reign vs preponderate

reign is a noun but preponderate is not a noun.

Word	Noun	Adjective	Verb	Adverb
reign	Yes	No	Yes	No
preponderate	No	No	Yes	No

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

Other hyponyms of reign include override, overarch, outbalance, outweigh, overbalance.

reign (noun)	preponderate (noun)
royal authority; the dominion of a monarch
the period during which a monarch is sovereign
a period during which something or somebody is dominant or powerful

reign (verb)	preponderate (verb)
have sovereign power	weigh more heavily
be larger in number, quantity, power, status or importance