Basque sky/thunder god whose name survives in weekday and weather words; sole explicit witness is Picaud's 12th-c. gloss 'they call God Urcia'. No narrative myths survive (flagged honestly).
Domains
sky thunder
Powers
Lend his name to sky, thunder and the storm
Epithets
Ortzi
Sources
Aymeric Picaud, Codex Calixtinus, Book V (c. 1140)
J. M. Barandiarán, Mitología vasca; lexical survivals (ostegun, ortzadar)