"affectedly dainty," 1520s, probably originally in reference to speech, when words were "clipped" to affect elegance; or in reference to walking with short steps; present participle adjective from mince (v.).
(Heb. taphoph, Isa. 3:16), taking affectedly short and quick steps. Luther renders the word by "wag" or "waggle," thus representing "the affected gait of coquettish females."