The Euskal Hiztegi Historiko-Etimologikoa (EHHE; English: Basque Historical-Etymological Dictionary) is a historical and etymological dictionary of Basque, published by the Royal Academy of the Basque language, edited by Joseba Lakarra, Julen Manterola, and Iñaki Segurola.[1][2] It is the first comprehensive historical and etymological Basque dictionary.[3]