Female first name (German): Raina, Old High (became independent short form); ragin = the advice of the decision; became independent short form of names with the element of 'clean', eg Reinhild Female first name (Slavic): Raina, the queen, Latin (compound word); rex = king, in Christian tradition 'Regina Coeli' (queen of the Heavens) is a title for Mary, information on male form Rex, from English into German over, despite the Latin origin of the word probably only been about the 19. Century as a first name in use
