Đại Cồ Việt

Etymology
in Đại Việt sử ký toàn thư, in chữ Hán form.

Momoki (2014) proposes that &  are likely based on  &  in 12th-century 's inscriptions instead of the nation's 10th-century name, as the form  had been attested earlier in 10th-century brick inscriptions.

Proper noun

 * 1) Đại Cồ Việt, the official name for the Vietnamese nation between the rule of Đinh Bộ Lĩnh (r. 968-979) and the rule of Lý Thánh Tông (r. 1054-1072).