Kaius: Name Meaning, Origin & Popularity

At a Glance: Name: Kaius – Origin: Latin (variant of the Roman praenomen Gaius/Caius, of unknown origin) or Estonian form of Kai – Gender: Boy – Pronunciation: KY-əs


Kaius is a Latin (variant of the Roman praenomen Gaius/Caius, of unknown origin) or Estonian form of Kai boy's name. It appears in our list of 200+ Mystical, Whimsical Boy Names That Will Definitely Inspire You.

Meaning & Origin of Kaius

Origin: Latin (variant of the Roman praenomen Gaius/Caius, of unknown origin) or Estonian form of Kai.

A common claim: Kaius means "rejoice" Actually: "Rejoice" is a folk etymology linking Gaius/Caius to Latin gaudere ("to rejoice"); the actual origin of Gaius/Caius is unknown and disputed by scholars.

How to Pronounce Kaius

Phonetic: KY-əs   IPA: /ˈkaɪəs/

Popularity of Kaius

Source: U.S. Social Security Administration birth-name data, 2005–2024.

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