IPA: /ˈæn.sɛs.tər/
KK: /ˈæn.ses.tɚ/
A person from whom someone is descended, especially if they lived a long time ago, like a great-grandparent or earlier.
My ancestors came from Europe many generations ago.
Ancestor → It is formed from "ante-" (meaning before) and "cessor" (from "cedere", meaning to go or yield). The word refers to those who have gone before us in our family lineage.
Think of someone who has 'gone before' ('ante-') in your family — that's why an ancestor is a person from your family history.