A person or thing that comes before another in time, often used to indicate something that precedes or leads to a subsequent event.

पूर्ववर्ती

English Usage: The fore runner of modern technology was the invention of the wheel.

Hindi Usage: आधुनिक प्रौद्योगिकी का पूर्ववर्ती पहिया का आविष्कार था।