* Sanskrit: Considered a classical language of India, Sanskrit has roots dating back to at least 1500 BCE. It's the source of many other languages, including Hindi, Marathi, Gujarati, and Bengali.
* French: French emerged from Latin, which was spoken in Gaul (modern-day France) around the 5th century CE.
* English: English evolved from Old English, which itself descended from Proto-Germanic, spoken around the 5th century CE.
* Gujarati: Gujarati, while rooted in Sanskrit, developed as a distinct language in the early Middle Ages (around the 11th century CE).
Therefore, Sanskrit, with a history stretching back thousands of years, is significantly older than the others.