orator vs panegyrist

orator and panegyrist both are nouns.

Word	Noun	Adjective	Verb	Adverb
orator	Yes	No	No	No
panegyrist	Yes	No	No	No

As nouns, panegyrist is a hyponym of orator; that is, panegyrist is a word with a more specific, narrower meaning than orator:

Other hyponyms of orator include eulogist, elocutionist, haranguer, spellbinder, tub-thumper.

orator (noun)	panegyrist (noun)
a person who delivers a speech or oration	an orator who delivers eulogies or panegyrics