arbertzale is incorrectly written and should be written as "Abertzale or Aberzale" being its meaning:I think that question is by Abertzale or Aberzale. It is a word of the Basque language. Used to indicate that he is supporter of the separatist movement or Basque nationalist. The literal translation of the word is Patriot, lover of the homeland, nationalist.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list