A modern elaboration of a Latin-sounding form, probably built from Quart-/Quat- with a decorative ending.
Quaterrius is a modern elaboration of a Latin-sounding form, probably built from Quart- or Quat- with a decorative ending. It feels like a creative extension of a classical shape rather than a direct inheritance from one fixed source.
The name sounds dramatic, rare, and intentionally ornamental. Quaterrius has the kind of elaborate structure that gives it presence in speech. It fits the modern taste for names that feel grand and invented at the same time.