Likely a variant of Zaydi or Zaydi, from Arabic roots suggesting increase, growth, or abundance.
Zeidy occupies a fascinating dual identity in naming culture. In Yiddish — the vibrant Germanic Jewish language of Eastern European Ashkenazic communities — zeyde (זיידע) is the beloved term for grandfather, derived from the Middle High German 'seide' and ultimately cognate with roots meaning elder or ancestor. For generations of American Jewish families, 'Zeidy' was the intimate, affectionate form of address for a grandfather, carrying the warmth and irreplaceable texture of a living language that the Holocaust and assimilation severely diminished.
To name a child Zeidy is, in some communities, an act of memory and honor. But Zeidy also exists as an independent given name in Spanish-speaking communities, particularly in Latin American and Caribbean contexts, where it functions as a feminine name with no necessary connection to the Yiddish usage. This is not unusual in Spanish naming traditions, which frequently adopt and adapt sounds from other languages.
In Cuba and its diaspora, Zeidy appears as a woman's name with its own phonetic appeal, independent of any grandparent connotation. This double life makes Zeidy a culturally complex name — one that can be a tribute to Ashkenazic Jewish heritage, a Spanish-influenced choice, or simply a phonetically distinctive option that a parent encountered and loved for its sound. The 'Z' opening, increasingly fashionable in contemporary naming culture, gives it an immediate visual and phonetic distinctiveness, while its warmth and cultural depth reward those who inquire into its origins.