|Origin:||ancestre, from Latin antecessor 'one who goes before', from antecedere; ANTECEDENT|
a member of your family who lived a long time ago [↪ descendant]:
My ancestors were French.
an animal that lived in the past, that modern animals have developed from:
Lions and house cats evolved from a common ancestor (=the same ancestor).
the form in which a modern machine, vehicle etc first existed
Babbage's invention was the ancestor of the modern computer.
the family's ancestral home