Source : Webster's Revised Unabridged Dictionary (1913)

Honorific \Hon`or*if"ic\, a. [See {Honor}, {-fy}, and {-ic}.]
   Conferring honor; tending to honor. --London. Spectator.

Source : WordNet®

honorific
     adj : conferring or showing honor or respect; "honorific social
           status commonly attaches to membership in a recognized
           profession"
     n : an expression of respect; "the Japanese use many honorifics"