The term szlachta is derived from the Old High German word slahta (modern German Geschlecht), which means "(noble) family", much as many other Polish words pertaining to the nobility derive from German words—e.g., the Polish "rycerz" ("knight", cognate of the German "Ritter") and the Polish "herb" ("coat of arms", from the German "Erbe", "heritage").
What does slahta mean?
"(noble) family"