Casio likely draws from Cassius or Cassio, a Roman surname of uncertain older origin associated with classical Latin naming.
Casio likely draws from Cassius or Cassio, both part of the Roman and classical Latin naming world, though its older origin is uncertain. That classical association gives the name a polished, ancient sheen, even when it is used today in a more modern or stylistic way.
Casio feels compact and refined, with a faintly Mediterranean sound that makes it memorable. It has enough familiarity to be pronounceable, but enough rarity to stand out. The name suggests classic lineage without being heavily traditional, which is part of its appeal: it seems elegant, brief, and slightly rarefied.