Latinized form of Greek Ζωΐλος (Zoilos), derived from ζωή (zoe) meaning "life". This name was borne by a 4th-century BC Greek philosopher known as a critic of Homer, and also by two Indo-Greek kings. Saint Zoilus was martyred at Córdoba, Spain during the persecutions of the Roman emperor Diocletian in the early 4th century.