Reconstruction:Proto-Japonic/tonku

This Proto-Japonic entry contains reconstructed terms and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.

Proto-Japonic

Verb

*tonku (infinitive *tonki)

1. to sharpen

Descendants

• Old Japanese: 研ぐ (to₁gu)
  • Japanese: 研ぐ (togu)
• Proto-Ryukyuan: *togi
  • Northern Ryukyuan:
    • Kunigami: 研じゅん (thujun)
    • Northern Amami Ōshima: 研ぐり (θuguri)
    • Okinawan: 研じゅん (tujun)
    • Okinoerabu: 研じゅん (tujun)
    • Yoron: 研ぎゅん (tugyun)
  • Southern Ryukyuan:
    • Miyako: 研げぃ (tugzï)
    • Yaeyama: 研ぐん (tugun), 研ーん (tōn)
    • Yonaguni: 研く゚ん (tungun)