sep·pu·ku 
(sĕp-k, sĕ-p-)
(sĕp-k, sĕ-p-)n.
Ritual suicide by disembowelment formerly practiced by Japanese samurai. Also called hara-kiri.
[Japanese : setsu, to cut (from Middle Chinese tshiat; also the source of Mandarin qiè) + fuku, stomach, abdomen (from Middle Chinese fuwk; also the source of Mandarin fù).]