foreparent means a forefather or foremother (used as a gender-neutral equivalent). Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From fore- + parent.
noun
- a forefather or foremother (used as a gender-neutral equivalent)“Our foreparents were born in Africa / And we are born in Jamaica / But every day some people a talk / Like they are born in Africa / [...] / And all my brothers who were born inna England / Your foreparents were born in Africa / And all my sisters who were born inna England / Your foreparents were born in Africa”