Red ground, white cross over a green saltire. Designed in 1894; flown over American Basque clubs since long before it was legal at home.
Funerary stele with the basque flag (ikurrina) in the old cemetery of the church Saint-Étienne in Espelette (Pyrénées-Atlantiques, France). Tangopaso · Public domain · Commons
Root
ikur + -iña — the flag (Euskara)tradition
Pictures
Ikurrina or Basque Flag in Town Hall of Andoain, 1977ko urtarrila Lasarte familia. Gure Gipuzkoa. · CC BY 4.0 · CommonsIkurriña en Getaria Artistosteles · CC BY 4.0 · Commons