親父

Noun

 * 1)  biological father

Etymology 1
Perhaps from 🇰🇲. The reading appears to be an alteration of an earlier form, oyachichi, perhaps under the influence of. The kanji are.

Noun

 * 1)  an old man
 * 2)  an old man

Usage notes

 * The word is relatively masculine in usage. A woman is unlikely to use it to refer to her own father.

Etymology 2
From.

Noun

 * 1)  one's own father