Diminutive of Martha or Martin, from Latin "Mars," the Roman god of war.
Marti functions as a diminutive bridge between two ancient names: Martha and Martin. Martha travels from the Aramaic Marta, meaning "mistress" or "lady of the house," and carries the weight of the biblical Martha of Bethany — whose episode of busy hospitality versus her sister Mary's contemplative sitting has generated centuries of theological and feminist debate about work, devotion, and whose labor is recognized. Martin comes from the Latin Martinus, a derivative of Mars, the Roman god of war, yet the name's most influential bearer — Martin of Tours, the fourth-century soldier-turned-bishop who famously cut his cloak in half to share with a beggar — transformed it into a symbol of compassion over conquest.
Marti as a given name belongs primarily to the twentieth century, emerging in American usage as a friendly, energetic short form that could honor either root. It has been used for both men and women, though in modern English-speaking countries it skews feminine. The name carries associations of warmth and approachability — the kind of name that feels immediately familiar.
Among its notable bearers is the Cuban national hero José Martí (though with an accented surname rather than a first name), whose revolutionary poetry and political writing make the sound Martí synonymous across the Spanish-speaking world with patriotism and literary brilliance. In popular culture, Marti appears in various American contexts as the informal, spirited choice of parents who wanted something friendlier than Martha or less common than Marty. It sits comfortably in the tradition of nickname-names that have fully emancipated themselves from their longer originals — complete, confident, needing no expansion.