Greek form of Tobiah. This is the name of the hero of the apocryphal Book of Tobit, which appears in many English versions of the Old Testament. It relates how Tobit's son Tobias, with the help of the angel Raphael, is able to drive away a demon who has plagued Sarah, who subsequently becomes his wife. This story was popular in the Middle Ages, and the name came into occasional use in parts of Europe at that time. In England it became common after the Protestant Reformation.