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What does van der Tuukās RGH law show about Malay Tagalog and Ngaju Dayak words?
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Austronesian languages
Major divisions of the Austronesian languages.
H.N. van der Tuukās RGH law, also known as his first law, is a foundational principle in comparative linguistics that identifies recurrent sound correspondences among Austronesian languages.
The law demonstrates that the Malay sound /r/ corresponds systematically to the Tagalog sound /g/ and the Ngaju Dayak sound /h/. A clear example of this pattern is found in the word for "vein": Malay urat, Tagalog ugat, and Ngaju Dayak uhat.1