селитра

Etymology
Inherited from (since 1596), from  (since 1565, whence 🇨🇬), from earlier  (att. in 1517 in Skaryna's Proverbs). Further origin unclear but akin to 🇨🇬 (whence 🇨🇬 and 🇨🇬), 🇨🇬, 🇨🇬,, , 🇨🇬, 🇨🇬, , 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬 (which is from and , see there for further etymology).

Displaced earlier during the 17th century.

Noun

 * 1)  saltpetre potassium nitrate, sodium nitrate