gerbil is incorrectly written and it should be written as "gerbil or gerbal, 40 tree;"Sorbus domestica ) and gerba, its fruit." being its meaning: Rowan home, its fruit the jerba, in Castilla La Vieja, North of Burgos, Cantabria and the Basque country, in disuse in Soria, almost forgotten in Segovia.Del latin sorbus, surnames and place names such as Gérboles.