IPA: //prəʊˈdʒɛnɪtə//
KK: /proʊˈdʒɛnɪtər/
A direct ancestor or originator of a line of descent; someone who comes before in a family or lineage.
The scientist is considered a progenitor of modern genetics.
Progenitor → It is formed from "pro-" (meaning before) and "genitor" (from Latin "genitor", meaning one who begets or produces). The word refers to an ancestor or a forebear, someone who comes before and gives rise to descendants.
Think of someone who 'comes before' ('pro-') and 'produces' ('genitor') the next generation — that's why a progenitor is an ancestor.