1. To spring or bound, as a horse in high mettle. Now rule thy prancing steed. (gay)
2. To ride on a prancing horse; to ride in an ostentatious manner. The insulting tyrant prancing o’er the field. (Addison)
3. To walk or strut about in a pompous, showy manner, or with warlike parade.
Origin: OE. Prauncen; probably akin to prank, v. T. See Prank.