From vor- (“fore-”) + Haut (“skin”), loosely after Latin praeputium. Chiefly spread by Luther (16th c.), but attested once or twice before him. The foreskin was of no special interest to the Germanic peoples and the need for a word arose only in biblical context. Translations were often ad-hoc formations or mere descriptions, though Überwachsung (literally “over-growth”) was somewhat common in the 15th century.