Rzecz - Polish Etymology

From Proto-Slavic *rěčь (“speech”).

Noun
rzecz f - thing


Etymology

rzecz (“thing”) + pospolita (“common”), a loan translation of the Latin rēs publica (“public affair”). (рус. дело общее)

Rzeczpospolita Obojga Narodów Commonwealth of Poland and Lithuania, Polska Rzeczpospolita Ludowa Polish People's Republic (abbrev. PRL).