皇こう考こう

noun

deceased father of the current emperor

A formal historical term referring specifically to the late father of the reigning emperor. Not used for ordinary fathers or in modern everyday language.

• 古こ文ぶん書しょには「皇こう考こう」と記しるされ、亡なき父ふ帝ていを指さしている。

  In the ancient document, '皇考' is written, referring to the deceased father of the emperor.