-ак

Inherited from Old East Slavic -акъ (-akŭ), Proto-Slavic *-akъ.

• IPA^(key): [ˈak]

-а́к • (-ák)

1. Alternative form of -я́к (-ják) (suffix usually denoting a person with a given characteristic, or an inanimate noun of various meanings; often of a colloquial nature)
   1. (added to adjectives)

      Synonyms: -ок (-ok), -ец (-ec), -ик (-ik)

      ‎четвёртый (četvjórtyj, “fourth”) + ‎-а́к (-ák) → ‎четверта́к (četverták, “quarter”)

      ‎си́ний (sínij, “deep blue”) + ‎-а́к (-ák) → ‎синя́к (sinják, “bruise”)

      ‎большо́й (bolʹšój, “big large”) + ‎-а́к (-ák) → ‎больша́к (bolʹšák, “large road”)

      ‎просто́й (prostój, “simple”) + ‎-а́к (-ák) → ‎проста́к (prosták, “simpleton”)

      ‎о́бщий (óbščij, “common, general”) + ‎-а́к (-ák) → ‎обща́к (obščák, “common fund of a criminal group (slang)”)

   2. (added to nouns)

      Synonym: -ник (-nik)

      ‎ры́ба (rýba, “fish”) + ‎-а́к (-ák) → ‎рыба́к (rybák, “fisherman”)

      ‎мо́ре (móre, “sea”) + ‎-а́к (-ák) → ‎моря́к (morják, “seaman, sailor”)

      ‎пять (pjatʹ, “five”) + ‎-а́к (-ák) → ‎пята́к (pjaták, “five-kopeck coin”)

   3. (added to verbs)

      Synonyms: -ок (-ok), -ец (-ec)

      ‎ре́зать (rézatʹ, “to cut”) + ‎-а́к (-ák) → ‎реза́к (rezák, “cutter”)

      ‎лежа́ть (ležátʹ, “to lie”) + ‎-а́к (-ák) → ‎лежа́к (ležák, “lounger, sunbed”)

      ‎перде́ть (perdétʹ, “to fart”) + ‎-а́к (-ák) → ‎перда́к (perdák, “ass, butt (colloquial, humorous)”)

From Proto-Slavic *-ъkъ.

• IPA^(key): /ak/

-ак (Latin spelling -ak)

1. Suffix appended to words to create a masculine noun, usually denoting a performer, feature, human relation, result of an action, object, diminutive or a proper name.

• -јак
• -њак

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

• IPA^(key): /ak/

-ак (Latin spelling -ak)

1. Suffix appended to the present stem of verbs to form an adjective denoting a feature or a dimension.

   • глад (“to smooth”) + -ак → гладак (“smooth”).
   • љуб (“to love”) + -ак → љубак (“amiable”).
   • Proto-Slavic *plyti + -ак → плитак (“shallow”).

• -ек
• -ок

-ак • (-ak)

1. Suffix which forms the diminutive.