Kaius is a unique and modern name that has its origins in Latin, meaning "rejoice" or "happy." People with the name Kaius are often described as sociable, energetic, and fun-loving. They have a lively and charismatic personality that draws others to them. Kaius is confident and assertive, with a natural ability to lead and inspire those around them. Overall, Kaius is a name that exudes positivity and a zest for life.