Comments:The root should be distinguished from *bašo q. v. (cf. the distinction in Manchu), although some contaminations were possible. Note a peculiar alternation *-s-/*-č- both in TM and Kor., possibly indicating an old suffixed variant *p`asi-č`V. PJ *pasir- 'run', because of its vocalism, is rather to be attributed to PA *p`ĕ̀ĺo q. v.
