回む

Appears to be cognate with 玉 (tama, “ball, bead”) and modern Japanese 訛む (damu, “to speak hoarsely, or with an accent”).

回む (tamu) (kana たむ)

1. to turn around, go around
   • c. 759, Man’yōshū, book 1, poem 58:

     何所爾可船泊爲良武安禮乃埼榜多味行之棚無小舟

     iduku ni ka punapate suramu Are-no₂-saki₁ ko₂gi₁tami₂ yuki₁si tana nasi wopune

     Where is it going to berth? A little dugout canoe which rowed and went around the cape of Are.

2. to bend
   • c. 759, Man’yōshū, book 11, poem 2363:

     岡前多未足道乎人莫通在乍毛公之來曲道爲

     woka-saki₁ no tami₂taru mi₁ti wo pi₁to₂ na kayo₁pi₁ so₂ aritutu mo ki₁mi₁ ga ki₁ masamu yo₂ki₂mi₁ti ni semu

     A bending road in front of the hill; don't pass through here by the others forever. I want to make it a secret path where you will come.