Cadia is an uncommon name with unknown origins and no clear etymology. It has been used in various cultures throughout history but its meaning remains unclear. Some people might associate it with the Spanish word "cadia," meaning "a kind of large fish," but there's no evidence to suggest this is its origin. Instead, Cadia appears to be a purely invented name chosen by parents seeking something original and unique. Despite its mystery, some parents are drawn to Cadia's distinctive sound and aura of uniqueness.