(1):

(n.) The upper hand; advantage; superiority; mastery.

(2):

(a.) 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.

(3):

(adv.) In an overhand manner or style.

(4):

(a.) Done (as pitching or bowling) with the hand higher than the elbow, or the arm above, or higher than, the shoulder.