Szlachta
Poles of the 17th century assumed that "szlachta" came from the German "schlachten" ("to slaughter" or "to butcher"); also suggestive is the German "Schlacht" ("battle"). Early Polish historians thought the term may have derived from the name of the legendary proto-Polish chief, Lech, mentioned in Polish and Czech writings.
What German word is also suggestive deriving from  szlachta?
Schlacht
Poles of the 17th century assumed that "szlachta" came from the German "schlachten" ("to slaughter" or "to butcher"); also suggestive is the German "Schlacht" ("battle").
Szlachta