honorific (adj.)

"conferring honor," 1640s, from French honorifique (16c.) or directly from Latin honorificus "that which does honor," from honorem (see honor (n.)) + -ficus "making, doing," from combining form of facere "make, do" (from PIE root *dhe- "to set, put"). As a noun, "a word used as an honorific term," by 1867.