Osłonin

Osłonin is a Polish surname. It derives from the Polish word "osłona," meaning "shelter," "cover," or "protection." As such, the surname likely originated as a nickname for someone who provided protection to others, worked as a guard or watchman, or lived near a place of refuge.

Surnames derived from occupations or characteristics were common in Poland, and the surname Osłonin falls into this category. The earliest recorded instances of the name's usage and geographical distribution would require further genealogical research and historical records analysis.

The surname's declension in Polish would follow standard masculine surname rules.