Leni is a German diminutive form of the names Helene or Magdalena. It is often used as a nickname or affectionate form, reflecting a sense of familiarity and endearment. The name Helene is of Greek origin, meaning 'light' or 'torch,' while Magdalena is derived from the Hebrew name Magdalene, meaning 'from Magdala,' a town on the Sea of Galilee. Leni, as a diminutive, carries these meanings in a more casual and approachable form.