grandiloquence vs magniloquence

grandiloquence and magniloquence both are nouns.

Word	Noun	Adjective	Verb	Adverb
grandiloquence	Yes	No	No	No
magniloquence	Yes	No	No	No

As nouns, grandiloquence and magniloquence are synonyms defined as:

grandiloquence and magniloquence: high-flown style; excessive use of verbal ornamentation

Other synonyms of grandiloquence include grandiosity, ornateness, rhetoric.

grandiloquence (noun)	magniloquence (noun)
high-flown style; excessive use of verbal ornamentation	high-flown style; excessive use of verbal ornamentation