From October 13th: Understanding Paternal Parentage

Yesterday, my lil' Jellybean squeals in the car while on our way home, "My Grandpa Billy is my great-grandpa and he's Popa's daddy! And I love him! And my Popa, he is MY Popa! And Popa is YOUR daddy, and Popa, he's MY grandpa! And I LOVE HIM!"

She's two and a half. 

P.S. Is 'parentage' a word?