osłowy piasek

== Polish == === Etymology === Literally, “donkey sand”. === Pronunciation === (Masovia): (Near Masovian) IPA(key): [ɔˈswɔ.vɘ ˈpja.sɛk] === Noun === osłowy piasek m inan (Near Masovian) sand ground from stones used for sharpening === Further reading === Zygmunt Wasilewski (1889), “osłowy piasek”, in Jagodne: wieś w powiecie łukowskim, gminie Dąbie: zarys etnograficzny‎[1] (in Polish), Warsaw: M. Arct, page 244