Kaius

Kaius is a variant spelling of the Latin name Caius, which was a Roman family name or praenomen (personal name) used by various individuals in ancient Rome.

The exact meaning and origin of the name Caius are uncertain, though some sources suggest it may be derived from the Latin word 'gaudere', meaning 'to rejoice' or 'to be glad'.

Alternatively, it has been proposed that Caius could be a latinized form of a Gaulish or Celtic name, as the name was popular among individuals of Celtic descent in ancient Rome.

While Caius was a relatively common name in ancient Rome, the variant spelling Kaius is a modern innovation, likely intended to give the name a more distinctive or contemporary appearance.