懐剣

/kwaiken/ → /kaiken/

Appears to be a coinage in Japanese of Middle Chinese-derived roots, as a compound of 懐 (kai, “bosom; the chest area of a kimono above the 帯 (obi, “sash”) and inside the collar”) +‎ 剣 (ken, “sword”). Appears in texts from the 1300s.^[1]

• (Tokyo) かいけん [kàíkéń] (Heiban – [0])^[2]
• IPA^(key): [ka̠ikẽ̞ɴ]

懐(かい)剣(けん) • (kaiken) ^{←くわいけん (kwaiken)?}

1. (historical) a kind of dagger used by the samurai class, carried in the 懐 (futokoro, “chest area of a kimono above the 帯 (obi, “sash”) and inside the collar”) for self-defense

   Synonyms: 懐刀 (futokoro-gatana), 一尺三寸 (isshaku sanzun)

2. (modern) a replica dagger as part of certain ceremonial costume, such as the formal wear of boys for the 七五三 (shichi-go-san, “seven-five-three”) festival

   Synonyms: 懐刀 (futokoro-gatana), 一尺三寸 (isshaku sanzun)

3. (poetry) working on possible response lines for a 連歌 (renga, “linked poem”), 俳諧 (haikai, “amusing style of waka Japanese poetry”), or similar call and response style of performed poetry, prior to a performance; any lines prepared before such a performance

• see Thesaurus:短刀