Erik

The given name Eric, Erich, Erikk, Erik, Erick, or Eirik is derived from the Old Norse name Eiríkr [ˈɛiˌriːkz̠] (or Eríkr [ˈeˌriːkz̠] in Old East Norse due to monophthongization).
The first element, ei- may be derived from the older Proto-Norse *aina(z), meaning "one, alone, unique", as in the form Æ∆inrikr explicitly, but it could also be from *aiwa(z) "everlasting, eternity", as in the Gothic form Euric. The second element -ríkr stems either from Proto-Germanic *ríks "king, ruler" (cf. Gothic reiks) or the therefrom derived *ríkijaz "kingly, powerful, rich, prince"; from the common Proto-Indo-European root *h₃rḗǵs. The name is thus usually taken to mean "sole ruler, autocrat" or "eternal ruler, ever powerful". Eric used in the sense of a proper noun meaning "one ruler" may be the origin of Eriksgata, and if so it would have meant "one ruler's journey". The tour was the medieval Swedish…