Miss Kitten and Shark are otherwise preoccupied this evening.  Therefore, the High Priestess will fill in.  Please do not expect much.

Sesquipedalian
\ˌses-kwə-pə-ˈdāl-yən\
adjective

1. having many syllables : long
2. given to or characterized by the use of long words <a sesquipedalian television commentator>

Origin of sesquipedalian:  Latin sesquipedalis, literally, a foot and a half long, fromsesqui- + ped-, pes foot — more at foot

Example:  Concatenate is a sesquipedalian way of saying the word link.