 Early evidence on the language of the Baiuvarii are limited to personal names and a few Runic inscriptions.By the 8th century AD, the Baiuvarii were speakers of an early form of the Bavarian language, which is West Germanic.As the name Baiuvarii means "men from Bohemia", evidence from etymology trace the history of the Baiuvarii back to the 1st century AD, after the Celtic Boii left the area and were replaced Maroboduus, king of the Germanic Marcomanni moved Suebian people into the area.