Either borrowed from Middle High German zolle, or from an earlier Lombardic scolla, zolla, (modern German Scholle), from Proto-Germanic *skaljō (compare West Frisian skyl (“peel, rind”), Dutch schil (“peel, skin, rink”), Low German Schell (“shell, scale”)), from Proto-Indo-European *(s)kelH- (“to split, cleave”) (compare Irish scelec (“pebble”), Latin silex (“pebble, flint”), siliqua (“pod”), Old Church Slavonic сколика (skolika, “shell”)). Compare Sicilian zoḍḍa.