historic, historical / already-happened, past / former, old, traditional

Chetniks (historical Serbian royalist group)

a group

Serbia

a king, especially one who is not East Asian or was East Asian in pre-imperial times; in China and Vietnam, generally a king before Qin Shi Huangdi who invented the title 皇帝 (kōtei, “huangdi; emperor”); in Korea, one of the many kings before the Korean Empire which was modeled after Japan's; in Japan, one of the rulers before Emperor Jinmu

history / the study of history

"Historical kana usage", a prescriptive method of using kana to write Japanese. Devised in the Edo period by Keichū (契沖) and taught in schools until 1946, it aims to be etymologically faithful and reflects earlier stages of the language (Heian period and earlier).

king

(archaic) an ancient Korean king

king / monarch