are reconstructable for Proto-Slavic have been identified as borrowings from the languages of various tribes that Proto-Slavic speakers interacted with...

Proto-Slavic (abbreviated PSl., PS.; also called Common Slavic or Common Slavonic) is the unattested, reconstructed proto-language of all Slavic languages...

Proto-Balto-Slavic (PBS or PBSl) is a reconstructed hypothetical proto-language descending from Proto-Indo-European (PIE). From Proto-Balto-Slavic, the...

development and origin. A Proto-Balto-Slavic language is reconstructable by the comparative method, descending from Proto-Indo-European by means of well-defined...

The Proto-Slavic language, the hypothetical ancestor of the modern-day Slavic languages, developed from the ancestral Proto-Balto-Slavic language (c. 1500 BC)...

from a proto-language called Proto-Slavic, spoken during the Early Middle Ages, which in turn is thought to have descended from the earlier Proto-Balto-Slavic...

Slověne (Словѣне). Those forms point back to a Slavic autonym, which can be reconstructed in Proto-Slavic as *Slověninъ, plural Slověne.[citation needed]...

diphthongs is a Proto-Slavic sound change in which diphthongs turn into vowels. It is one of the key events in the chronology of the Proto-Slavic language....

West Slavic languages History of the Slavic languages, Proto-Balto-Slavic language, Proto-Slavic language, History of Proto-Slavic, Proto-Slavic borrowings...

or its two dialects, Proto-Gheg and Proto-Tosk, experienced the earliest contacts with South Slavic languages since the Slavic migrations to the Balkans...