Spanish and Portuguese form of Ramirus, earlier Ranimirus, a Latinized form of a Visigothic name derived from the Gothic element rana “wedge” or perhaps ragin “law, decree, assessment, responsibility” combined with mers “famous”. Saint Ramirus was a 6th-century prior of the Saint Claudius Monastery in León. He and several others were executed by the Arian Visigoths, who opposed orthodox Christianity. This name was subsequently borne by kings of León, Asturias and Aragon.