Rethia, derived from the ancient Etruscan name 'Rathia', is an uncommon and captivating given name of Italian origin. It was traditionally used by the Etruscans, who inhabited what is now Tuscany in Italy during the 7th to 1st centuries BC. The name has been preserved through the ages, though it remains relatively obscure today, making it a unique choice for those seeking an unusual and historically significant name.
"Rethia seems to have been quite popular as a baby girl's name in the late 1940s and early 1950s, with seven girls named Rethia born each in 1927 and 1946, and five each in 1947 and 1956. There were also seven births in 1957 and six in 1958. In total, there were thirty-seven baby girls named Rethia during this period."