Linguists employ regular sound correspondences as the foundational basis for the comparative method to determine whether words across different languages are cognates.
The claim states that linguists use regular sound correspondences to prove words with different meanings are cognate. Paper [2] and [7] directly demonstrate the application of regular sound correspondences and probabilistic models of sound change to establish cognacy and reconstruct ancestral languages in historical linguistics. No retrieved papers refute this central methodological tenet of historical linguistics.