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



Deverbal derivations are easily secondary, motivated by parallel formations, e.g.

Comparison with cognates in other Indo-European languages indicates antiquity of deadjectival formations:

Cognate with Proto-Celtic *-ākos (see Etymology 2).


*-akъ m

  1. Deadjectival, forming nouns denoting a carrier of a property.
    *junъ (young)*junakъ (a young man)
    *novъ (new)*novakъ (novice)
    *lěvъ (left)*lěvakъ (left-handed man)
    *svojь (one's own)*svojakъ (relative, cousin)
  2. Denominal, forming nouns denoting something connected in meaning to the base-word.
    *rodъ (kin)*roďakъ (relative, cousin)
    *kory (root)*koreňakъ (native, one from the root)
    *moře (sea)*mořakъ (sailor)
    *ryba (fish)*rybakъ (fishing)
  3. Denominal, forming masculine counterparts of feminine nouns.
    *gǫsь (goose)*gǫsakъ (gander)
  4. Deverbal, from the root, forming agent nouns.
    *prositi (to ask; beg)*prosjakъ >*prošakъ (beggar; asker)


Alternative formsEdit

  • *-jakъ (causing iotation of the preceding consonant)

Derived termsEdit


  • East Slavic:
    • Old East Slavic: -акъ (-akŭ)
  • South Slavic:

Further readingEdit

  • Šekli, Matej (2012) , “Besedotvorni pomeni samostalniških izpeljank v praslovanščini”, in Philological Studies[1] (in Slovene), volume 10, issue 1, Skopje, Perm, Ljubljana, Zagreb, pages 115–32
  • Sławski, Franciszek, editor (1974) Słownik prasłowiański (in Polish), volume I, Wrocław: Polska Akademia Nauk, page 89f