Modern coinage, a blend of Rhoda and Rhona. It is now often taken to be a Welsh name derived from rhon ‘pike, lance’ (as in Rhonwen;) + -da ‘good’, as in Glenda. The name is associated particularly with the American film actress Rhonda Fleming (b. 1923 as Marilyn Louis).
North German, Dutch, Danish, and Swedish: topographic name for someone who lived by a pasture or green, from Middle Low German brinc ‘edge’, ‘slope’, ‘grazing land’, especially a raised meadow in low-lying marshland. In both Danish and Swedish brink is a borrowing of Dutch brinck ‘waterside slope’; in Danish it means ‘where the water runs deep’.