This Proto-Slavic entry contains reconstructed terms and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.

From the neuter form of *-ьjь (See Etymology 2), from *-ь +‎ *-jь.

Akin to deverbal suffixes *-nьje and *-tьje. However, comparison with other Indo-European languages indicates archaicity of denominal formations, which are most likely substantivized adjectives. Compare

• Ancient Greek ὕπνος (húpnos, “dream”) → ἐνύπνιον (enúpnion, “dreaming”) = Common Slavic *sъnъ → *sъnьje
• Latin ōs, ōris (“mouth”) → ōstium (“estuary, river mouth”) = Common Slavic *usta → *ustьje

*-ьje n

1. Denominal, forming collective nouns

   *ostrovъ (“island”) → *ostrovьje (“archipelago”)

   *jedla (“spruce, fir”) → *jedlьje (“fir forest”)

   *dǫbъ (“oak”) → *dǫbьje (“oaks”)

   *kamy, *kamene- (“stone”) → *kamenьje (“stones, rocks”)

2. Deverbal (from past participle), forming action nouns

   *dati → *datъ / *danъ → *datьje / *danьje

   (*obrětti >) *obrěsti → *obrětenъ → *obrětenьje

   *kovati → *kovanъ → *kovanьje

   *kъrmiti → *kъrmljenъ → *kъrmljenьje

   (*ostojěti >) *ostojati → *ostojanъ → *ostojanьje

3. Denominal, forming nouns denoting various concepts

   *usta (“mouth”) → *ustьje (“mouth”)

   *sъnъ (“sleep”) → *sъnьje (“dream”)

   *na- +‎ *rěčь (“speech”) → *narěčьje (“adverb”)

   *na- +‎ *sila (“force”) → *nasilьje (“violence”)

4. Structural formant, without a base noun to synchronically derive from

   *zna-mę, *zna-men- (“sign, signal, mark”) → *znamenьje (“signs, signals, marks”)

5. Deadjectival, forming nouns denoting a property, state or condition

   *obilъ (“abundant”) → *obilьje (“abundance”)

   *sъdorvъ (“healthy”) → *sъdorvьje (“health”)

   *veselъ (“happy”) → *veselьje (“joy, happiness”)

6. Denominal, forming nouns denoting location or time

   *po- +‎ *rěka (“river”) → *porěčьje (“region near, along a river”)

   *za- +‎ *gora (“forest, mountain”) → *zagorьje (“region nearby a mountain”)

   *krajь- +‎ *bergъ (“coast”) → *krajьberžьje (“coastline”)

   *nadъ- +‎ *věsъ (“screen, curtain”) → *nadъvěsьje (“arch, dome, sth hanging over”)

   *bez- +‎ *vermę (“time”) → *bezvermьje (“timelessness”)

   *na- +‎ *večerъ (“eve”) → *navečerьje (“evening, time before dawn”)

• *-ja
• *-tva (from a-extension of supine)
• *-ьba, *-ьda
• *-ežь

• *-nьje (deverbal, with a *-n- suffix taken from past passive participle)
• *-tьje (deverbal, with a *-t- suffix taken from past passive participle)

• East Slavic:
  • Old East Slavic: -ие (-ije)
    • Belarusian: -е (-je), -а (-a)
    • Carpathian Rusyn: -а (-a), -я (-ja)
    • Russian: -ьё (-ʹjó), -ие (-ije), -ье (-ʹje)
    • Ukrainian: -я (-ja)
• South Slavic:
  • Old Church Slavonic:

    Cyrillic: -ьѥ (-ĭje), -иѥ (-ije)

    Glagolitic: -ⱐⰵ (-ĭe), -ⰻⰵ (-ie)

    • Bulgarian: -е (-e), -ие (-ie), -ье (-je) (dialectal)
  • Macedonian: -ие (-ie), -је (-je)
  • Serbo-Croatian:

    Cyrillic script: -је; allomorphic: -ће (<* -t-ьje), -шће (<* -st-ьje) -ње (< *-n-ьje), -ље (< *-l-ьje)

    Latin: -je; allomorphic: -će (<* -t-ьje), -šće (<* -st-ьje) -nje (< *-n-ьje), -lje (< *-l-ьje)

  • Slovene: -je
• West Slavic:
  • Old Czech: -ie
    • Czech: -í
  • Kashubian: -ié
  • Polish: -e, -ė, -ie
  • Slovak: -ie
  • Slovincian: -é

• Šekli, Matej (2012) “Besedotvorni pomeni samostalniških izpeljank v praslovanščini”, in Philological Studies‎ (in Slovene), volume 10, number 1, Skopje, Perm, Ljubljana, Zagreb, pages 115–32
• Halla-aho, Jussi (2006) Problems of Proto-Slavic Historical Nominal Morphology: On the Basis of Old Church Slavic (Slavica Helsingiensia; 26), Helsinki: University of Helsinki, page 75f
• Trubachyov, Oleg, editor (1977), “*datьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 4 (*čaběniti – *děľa), Moscow: Nauka, page 196
• Trubachyov, Oleg, editor (1977), “*danьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 4 (*čaběniti – *děľa), Moscow: Nauka, page 188
• Trubachyov, Oleg, editor (2002), “*obrětenьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 29 (*obpovědati – *obsojьnica), Moscow: Nauka, →ISBN, page 81
• Trubachyov, Oleg, editor (1985), “*kovanьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 12 (*koulъkъ – *kroma/*kromъ), Moscow: Nauka, page 8
• Trubachyov, Oleg, editor (1987), “*kъrmjenьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 13 (*kroměžirъ – *kyžiti), Moscow: Nauka, page 266
• Trubachyov, Oleg, editor (2003), “*obstojanьje”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 30 (*obsojьnikъ – *obvedьnъjь), Moscow: Nauka, →ISBN, page 63