also: こだいもんじ
noun
ancient script; ancient characters
Refers to writing systems or characters used in ancient times, such as Egyptian hieroglyphs, cuneiform, or oracle bone script.
博物館で古代文字の展示を見た。
I saw an exhibition of ancient scripts at the museum.
この石碑には古代文字が刻まれている
Ancient characters are carved into this stone monument.
Compound of 古代 (kodai, 'ancient times') and 文字 (moji, 'characters, script').