Source : Webster's Revised Unabridged Dictionary (1913)

Lexiphanic \Lex`i*phan"ic\ (l[e^]ks`[i^]*f[a^]n"[i^]k), a. [Gr.
   lexifa`nis a phrase monger; le`xis speech + fai`nein to
   show.]
   Using, or interlarded with, pretentious words; bombastic; as,
   a lexiphanic writer or speaker; lexiphanic writing.