Anglicized form of Carolus (see Charles), or of its feminine derivative Carola. It has never been common as a boy's name, and has become even less so since its growth in popularity as a girl's name. This seems to be of relatively recent origin (not being found much before the end of the 19th century). It probably originated as a short form of Caroline.
German: 1. variant spelling of Kämmer (see Kammer 2). 2. from a variant of Kammer ‘chamber’, ‘store’, ‘treasury’, hence an occupational name for a chamberlain or treasurer (see Kammerer). 3. habitational name for someone from Kemme.