Etxebarri(a) is a western Basque dialectal variant, with the same etymology. Etxarri (Echarri) is attested as stemming from Etxaberri.
In the context of Basque dialects, Etxebarri(a) shares its roots with another variant, Etxarri (Echarri). The latter's origins are traced back to Etxaberri.