外がい祖そ母ぼ

noun

maternal grandmother

Formal or written term for one's maternal grandmother. In everyday speech, おばあちゃん or 祖母 (そぼ) are more common.

• 外がい祖そ母ぼは母はは方かたの祖そ母ぼを指さす言こと葉ばです。

  外祖母 is a word that refers to one's maternal grandmother.