originator; pioneer; inventor; founder
progenitor; primogenitor; founder of a family line
元祖の味、ぜひお試しください！
Please try our original taste!
このラーメン店が元祖と呼ばれています。
This ramen shop is known as the originator.
この地域では、彼が元祖の発明家とされている。
In this region, he is considered the original inventor.