-HAI

Etymology
From.

In Navajo, the initial fricative *x̣ of Proto-Athabaskan didn't sonorize to gh, so in verbal stems and in the nominal stem the initial voiceless fricative h is maintained (with the exception of the adverbial derivative  or, which shows a later sonorization). See also for a similar situation.

Root

 * 1) a winter, a year passes


 * }