overhanding is a form of:

Overhand



ENGLISH MEANING
noun
1.
The upper hand; advantage; superiority; mastery.
adjective
1.
Over and over; -- applied to a style of sewing, or to a seam, in which two edges, usually selvedges, are sewed together by passing each stitch over both.
2.
Done (as pitching or bowling) with the hand higher than the elbow, or the arm above, or higher than, the shoulder.
adverb
1.
In an overhand manner or style.