Source : Webster's Revised Unabridged Dictionary (1913)

Curtsy \Curt"sy\ (k?rt"s?), n.
   Same as {Courtesy}, an act of respect.

Source : WordNet®

curtsy
     n : bending at the knees; a gesture of respect made by women
         [syn: {curtsey}]
     v 1: a gesture of respectful greeting, for women [syn: {curtsey}]
     2: make a curtsy; usually done only by girls and women; as a
        sign of respect; "She curtsied when she shook the Queen's
        hand" [syn: {bob}]
     [also: {curtsied}]