Origin of the name Sabrina:

Of uncertain etymology, Sabrina is believed to be of Celtic origin, as it is borne in Celtic mythology by an illegitimate daughter of the Welsh king Locrine. The child was ordered drowned by the king's wife, Gwendolen, thus giving her name to the river in which the foul deed took place. Latin writings of the 1st century list the river's name as Sabrina, but it is now known as the Severn.

From A World of Baby Names by Teresa Norman.Buy the book