GRANDILOQUENCE
grandiosity, magniloquence, ornateness, grandiloquence, rhetoric
(noun) high-flown style; excessive use of verbal ornamentation; āthe grandiosity of his proseā; āan excessive ornateness of languageā
Source: WordNet® 3.1
Etymology
Noun
grandiloquence (countable and uncountable, plural grandiloquences)
Lofty, pompous or bombastic speech or writing.
Synonym: magniloquence
Source: Wiktionary
Gran*dil"o*quence, n.
Definition: The use of lofty words or phrases; bombast; -- usually in a bad
sense.
The sin of grandiloquence or tall talking. Thackeray,
Source: Webster’s Unabridged Dictionary 1913 Edition