Words that come from Proto-Yeniseian ʔa(ʔ)t-

5 words across 2 languages descend from Proto-Yeniseian ʔa(ʔ)t- — including atol, atol, athol, átōl, atūl.

See the etymology of ʔa(ʔ)t- itself →

Assan (3)

Kott (2)