If something skitters, it moves about very lightly and quickly. The rats skittered around them in the drains and under the floorboards. to move very quickly and lightly, like a small animal = scurry skitter across/down/along etc (Probably from skite (18-20 centuries), probably from a language)
{f} move rapidly over a surface, skim quickly across a surface; run or move quickly; cause a lure or baited hook to skip across the surface of the water (Fishing)