Xabi is a Basque diminutive of the name Xavier, which itself originates from the Basque place name Etxeberria, meaning 'the new house'. The name Xavier has been widely used in the Basque region and has gained international recognition, particularly through the fame of Saint Francis Xavier, a co-founder of the Jesuit order. Xabi, as a diminutive, carries a sense of familiarity and affection, often used in informal contexts.