Not sure exactly what you mean, but you may be mistaking cultural influence for linear descent. Malay, Thai, Lao, Burmese are members of three different language families: Austronesian (Malay), Tai-Kadai (Thai, Lao) and Sino-Tibetan (Burmese). Sanskrit is a member of an entirely different one (Indo-European). There is a lot of borrowed vocabulary from Sanskrit in Malay, Thai, Lao and Burmese, but their grammars all work extremely differently from Sanskrit.
McDodley t1_j0uhswz wrote
Reply to comment by BBFA369 in Ancient Grammatical Puzzle That Has Baffled Scientists for 2,500 Years Solved by Cambridge University Student by Superb_Boss289
Not sure exactly what you mean, but you may be mistaking cultural influence for linear descent. Malay, Thai, Lao, Burmese are members of three different language families: Austronesian (Malay), Tai-Kadai (Thai, Lao) and Sino-Tibetan (Burmese). Sanskrit is a member of an entirely different one (Indo-European). There is a lot of borrowed vocabulary from Sanskrit in Malay, Thai, Lao and Burmese, but their grammars all work extremely differently from Sanskrit.