From Wiktionary, the free dictionary
усал • (us̬al) (3rd person possessive [please provide], plural усалсем)
- evil
- harm
- misfortune, calamity
усал • (us̬al)
- evil, harmful
- bad
- mischievous
- blizzard
- “усал”, in Электронлӑ сӑмахсар [Elektronlă s̬ămahsar][1] (overall work in Russian and Chuvash), 1996.