Jarosz Family History

Polish is derived from a short form of a personal name based on the Old Slavic element jar, which carries the adjectival meanings of 'lush rank' and 'strong'. For example, the name Jarosław illustrates this origin.

The term also originates from a short form of the vernacular form of the personal name Hieronim, which is rooted in the Greek Hierōnymos (refer to Jerome).

In some cases, the name may have been used as a nickname for a vigorous man, stemming from the adjective jary, which means 'strong' or 'robust'.