This is from the Spanish capón.
ka·pón
capon
A capon is an animal — often a male chicken — that has been castrated to improve the quality of its flesh for food and, in some countries like Spain, fattened by forced feeding.
KAHULUGAN SA TAGALOG
kapón: pag-alis ng ari o ng reproduktibong organo, karaniwang ginagawâ sa mga hayop para lalong lumusog
