astatkiEtymologyFrom Russian оста́тки (ostátki), nominative and accusative plural of оста́ток (ostátok), meaning "remnants".astatki means A thick liquid residuum obtained in the distillation of Russian petroleum, much used as fuel. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nounA thick liquid residuum obtained in the distillation of Russian petroleum, much used as fuel.