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RUKI Change (Pedersen's Law)
(1,441 words)

The ruki change is a sound change that took place most notably in the history of early Slavic, Baltic, and Indo-Aryan, in which s from PIE *s was altered phonologically in some environments in this subset of innovating Indo-European dialects. The change was noted as early as 1818 by Rasmus Kristian Rask and treated by other scholars. In Slavic, it took place in the Proto-Slavic stage (it is typically viewed as one of the earliest changes pertaining to Slavic). Specifically, s changed to x after r, u, k, and i, provided a stop consonant did not occur after it (s was maintained in Slavic in mos…

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Feeney, Matthew E., “RUKI Change (Pedersen's Law)”, in: Encyclopedia of Slavic Languages and Linguistics Online, Editor-in-Chief General Editor Marc L. Greenberg, Lenore A. Grenoble. Consulted online on 05 March 2024 <http://dx.doi.org/10.1163/2589-6229_ESLO_COM_037446>
First published online: 2020

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