Polnoglasie ‘pleophony’ or ‘full vocalism’ refers to East Slavic resolution of Proto-Slavic diphthongs ending in the liquids *r and *l. In the East Slavic languages, these diphthongs have reflexes with a vowel on each side of the sonorant (e.g., ORu zoloto, Ru, Uk zóloto, Br zólata ‘gold’ < PSl *zolt- < PIE *ǵʰolt-) as opposed to South and West Slavic reflexes with a vowel in postsonorant position (e.g., OCS zlato, Bg zlató, Cz zlato, Po złoto, etc.). Polnoglasie includes two varieties, according to their origin and dialectal distribution: primary polnoglasie   (see…