n. direct ancestor; originator of a line of descent; originator or founder
The Roth family, whose progenitor emigrated from Germany early in the nineteenth century, settled in Peru, Illinois.
Sentence in Classic:
Yet the taste of the age, demanding whatever was elaborate in compositions of this kind, did not fail to extend its influence over our stern progenitors, who had cast behind them so many fashions which it might seem harder to dispense with.
The Scarlet Letter By Nathaniel Hawthorne Context