The Enochian Language

Here are some articles that address the possible origins of languages. From Live Science there's this: The Original Human Language Like Yoda Sounded. Many linguists believe all human languages derived from a single tongue spoken in East Africa around 50,000 years ago. They've found clues scattered throughout the vocabularies and grammars of the world as to how that original "proto-human language" might have sounded.

If I understand what Google stated, it appears that Tamil, a South Indian language that's not Indo-European, is the oldest language.

Then there's this from wikipedia: Noam Chomsky, a prominent proponent of discontinuity theory, argues that a single chance mutation occurred in one individual in the order of 100,000 years ago, installing the language faculty (a component of the mid-brain) in "perfect" or "near-perfect" form.[6] A majority of linguistic scholars as of 2018 hold continuity-based theories, but they vary in how they envision language development. Among those who see language as mostly innate, some—notably Steven Pinker—avoid speculating about specific precursors in nonhuman primates, stressing simply that the language faculty must have evolved in the usual gradual way.

There's also this on Proto-Human language: en.wikipedia.org/wiki/Proto-Human_language . The authors seem skeptical about whatever studies have been conducted.

With so much interchange and word adoption between languages it seems to me that there can never be a determination about which prehistoric language group came first or which is closest to the "original". If you compare unrelated languages like Thai and English there are some quite striking similarities. For example in English we use the word span in association with the word bridge and the Thai word for bridge is suh-pahn (say it fast). All English and all Thai speakers possess blood, a type of fluid, and the Thai word is luid. Come to think of it blood sounds kind of like fluid if one is creative. Then there's fire (English) and fi (same vowel sound) in Thai. Meh, paw sound kind of close to Ma and Pa.