(common “Jōyō” kanji)
From Old Japanese. Possibly related to 噛む (kamu, “to bite”) or 痒い (kayui, “itchy”), although the ultimate derivation remains unknown.
蚊 (hiragana か, rōmaji ka)
Cognate with 蚊 (ka). Likely pronounced long due to being a single mora. Elongation of single mora words is still seen in the Ōsaka dialect with words like teː "hand" from te. The 794 quotation is the oldest extant example of a long vowel in Japanese.
蚊 (hiragana かあ, rōmaji kā)
- Yoshinori Kobayashi, Kojisho Ongi Shūsei 1: Shin'yaku Kegonkyō Ongi Shiki (in Japanese), Kyūko Shoin (published 1978; original text from 794), →ISBN.
- Tsukishima, Hiroshi (1079) Kojisho Ongi Shūsei 12: Konkōmyō Saishōōkyō Ongi (in Japanese), Tōkyō: Kyūko Shoin, published 1979, →ISBN.