Anglicized spelling of Síle, the Irish Gaelic form of Cecily. This name has become so common and widespread that it is hardly felt to be Irish any longer. In Australia since the 19th century it has been a slang generic term for any woman.
German and Swiss German: 1. apparently an occupational name for a turnip grower, from an agent derivative of Middle High German rabe ‘turnip’. 2. (also Räber): from a Germanic personal name, Radobert, a compound of rād, rāt ‘advice’, ‘counsel’ + berht ‘bright’, ‘famous’. 3. variant of Reber.