noun
pommel
Refers to the knob or cap at the end of a sword, knife, or similar weapon's hilt. A specialized term used in contexts like arms, martial arts, or historical descriptions.
日本刀の柄頭には、しばしば精巧な装飾が施されている。
The pommel of a Japanese sword is often elaborately decorated.
柄 (つか) means the entire hilt or grip of a sword, while 柄頭 (つかがしら) specifically refers to the pommel at the end of the hilt.
Compound of 柄 (つか, 'hilt') and 頭 (かしら, 'head'), literally 'hilt head'. The reading つかがしら follows standard rendaku voicing.