'Pesach' originates from Hebrew, specifically the word 'פֶּסַח' (pesach), where 'פֶּסַח' meant 'to pass over' or 'to spare.'

'פֶּסַח' (pesach) was adopted into English as 'Pesach,' maintaining its original meaning related to the Jewish festival.

Initially, it meant 'to pass over' or 'to spare,' referring to the biblical story of the Angel of Death passing over the houses of the Israelites. This meaning has remained consistent in its modern usage.