A "proto" form of this language was reconstructed by Koldo Mitxelena.
An expert on this language, Larry Trask, died while completing an etymological dictionary of it. Theo Vennemann pointed to this language's vigesimal counting system as evidence that it is the survivor of a far-reaching substratum. A classification of the dialects of this language was created by Louis Lucien Bonaparte, who argued that this language has a number of words for tools based on the root word for "stone" in the so-called aizkora controversy. A "proto" form of this language was reconstructed by Koldo Mitxelena. Intransitive verbs in this language are conjugated with the irregular verb izan. In the seventeenth century, a pidgin of this language was brought by sailors from its homeland to Iceland. Dialects of this language include Zuberoan and Gipuzkoan, while its standard form was developed in the 1960s and is named Batua. For 10 points, name this language isolate spoken by an autonomous region of the Pyrenees.
An expert on this language, Larry Trask, died while completing an etymological dictionary of it.
Basque [or Euskara; or El Vasco; or Navarrese; or Biscayan; or Vascuence]