Pipi - Kyubi

Japanese: 鳩尾 - きゅうび

〘Noun〙① The hollow between the chest and abdomen. The pit of the stomach. The solar plexus. ※Zenkyushu (around 1566) Volume 7 "There is a hole in the pith of the pigeon five minutes below the vertebral column." ※Torahirohon Kyogen: Munetsuki (late Muromachi period - early modern period) "When something as small as a loan letter is thrust into the pith of the pigeon, ahhh, ahhh, how painful." ② Abbreviation of "Kyuubi (pith of the pigeon) board." ※Honsho Gunki Ko (1722) Volume 9 "It is said that the right is called sandalwood and the left is called the pith of the pigeon."

Water - Falling water... [pigeon thrush]

〘 noun 〙 (meaning water drop) The hollow in the center below the breastbone. Kyuubi. Epigastric region. [Nippo Jisho (1603-04)] ※Shinkei Ruike-fuchi (1898)〈Sanyutei Encho〉 6 "It was as if I had been hit in this place, the navel, and my legs had split in two."

Epigastric (solubic)

〘noun〙 The central part of the chest, the concave part that touches the breastbone. It is considered one of the vital points in judo and karate. The epigastric cavity. Mizuochi. ※Shogaku Dokushohon (1874)〈Sakakibara, Naka, Inagaki〉 2 "The area below the breastbone is called misoochi, and the area below the navel is called kobara."

Hato-o ...o [pigeon tail]

〘Noun〙 = Kyubi (pigeon thorax)

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙① 胸と腹の間のくぼんだ所。みずおち。みぞおち。※全九集（1566頃）七「鳩尾の一穴は蔽骨の下五分に有」※虎寛本狂言・胸突（室町末‐近世初）「借状程の物が、鳩尾(キウビ)へさし込は、アリャアリャ、痛や痛や」② 「きゅうび（鳩尾）の板(いた)」の略。※本朝軍器考（1722）九「右を栴檀、左を鳩尾といふよしいひ伝へ侍り」