promulgator vs lawmaker

promulgator and lawmaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
promulgator	Yes	No	No	No
lawmaker	Yes	No	No	No

As nouns, lawmaker is a hypernym of promulgator; that is, lawmaker is a word with a broader meaning than promulgator:

promulgator: (law) one who promulgates laws (announces a law as a way of putting it into execution)
lawmaker: a maker of laws; someone who gives a code of laws

Other hypernyms of promulgator include lawgiver.

promulgator (noun)	lawmaker (noun)
(law) one who promulgates laws (announces a law as a way of putting it into execution)	a maker of laws; someone who gives a code of laws