Biblical name (meaning ‘watchful’ in Hebrew), borne by a character mentioned very briefly in the Bible, one of the chief officers of King David (2 Samuel 20:26). It was taken up by the Puritans in the 17th century, and is still occasionally used, mainly in the United States. It was famously borne by the lyricist Ira Gershwin (1896–1983).
English: topographic name for someone who lived by a copse or thicket, Middle English s(c)hage, s(c)hawe (Old English sceaga), or a habitational name from any of the numerous minor places named with this word. The English surname was also established in Ireland in the 17th century.