Names of the Croats and Croatia

The non-native name of Croatia (Croatian: Hrvatska) derives from Medieval Latin Croātia, itself a derivation of the native ethnonym of Croats, earlier *Xъrvate and modern-day Croatian: Hrvati. The earliest preserved mentions of the ethnonym in stone inscriptions and written documents in the territory of Croatia are dated to the 8th-9th century, but its existence is considered to be of an earlier date due to lack of preserved historical evidence as the arrival of the Croats is historically and archaeologically dated to the 6th-7th century.

Source: Wikipedia — Names of the Croats and Croatia (CC BY-SA 4.0)