Lexiphanicism

Lexiphanicism is a noun that refers to pretentious phraseology. The Greek word lexikos means ‘words.’ This is the basis of our word of the day which is usually employed in a pejorative manner. Here’s an example: Harry’s lexiphanicism is the only thing keeping him from being more liked. He’s a nice guy, but his insistence on using words nobody else has heard of can be a little irritating.