From Wiktionary, the free dictionary
From Proto-Japonic *atu (“hot”).
*atu
- hot
- Northern Ryukyuan:
- Kikai: 熱さい, 暑さい (atusai, atsusai)
- Kunigami: 熱せん, 暑せん (hachisen)
- Northern Amami Ōshima: 熱さり, 暑さり (atsïsari)
- Okinawan: 熱さん, 暑さん (achisan)
- Okinoerabu: 熱さん, 暑さん (achasan)
- Southern Amami Ōshima: 熱むっ, 暑むっ (attam)
- Tokunoshima: 熱さい, 暑さい (atsïsai)
- Yoron: 熱さん, 暑さん (achisan)
- Southern Ryukyuan:
- Miyako: 熱, 暑 (atsï)
- Yaeyama: 熱さん, 暑さん (attsasan)
- Yonaguni: 熱ん, 暑ん (attsan)
- Thorpe, Maner Lawton (1983) Ryūkyūan Language History[1], Doctoral dissertation. University of Southern California, pages 297-298