palatal law

noun

Definition of palatal law

: a statement in historical linguistics: Indo-European guttural consonants become palatals in Indo-Iranian when followed by the palatal vowel i or by an a which is equivalent to Greek and Latin e but remain gutturals when followed by the guttural vowel u or by an a which is equivalent to Greek and Latin a or o, thus establishing the a, e, and o found in the European languages as original Indo-European

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“Palatal law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/palatal%20law. Accessed 5 Jun. 2020.

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