E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The pommel of a saddle is the apple of it, called by the French pommeau. The Spaniards use the expression pomo de espada (the pommel of a sword). To pommel a person is to beat him with the pommel of your sword. The ball used as an ornament on pointed roofs is termed a pomel. (Latin, pomum, an apple.)