-nje and -ost: a noun from a verb, a noun from an adjective

Adult speech stands on nouns the language did not start with: they are built from verbs and adjectives. English does the same with -ing, -tion and -ness; Serbian does it with two suffixes, both predictable enough that you can assemble a new word yourself. For example: “Ажурирање је стигло ноћас и променило подешавања” — The update arrived overnight and changed the settings. A rule from the Serbian course: worked out…

Updated September 1, 2026 · Lingofly

How it works

Adult speech stands on nouns the language did not start with: they are built from verbs and adjectives. English does the same with -ing, -tion and -ness; Serbian does it with two suffixes, both predictable enough that you can assemble a new word yourself.

From a verb — the suffix -nje. Take the passive participle and swap the ending: ažuriratiažuriranje — updating; podešavatipodešavanja — settings; razočaratirazočaranje, olakšatiolakšanje, saosećatisaosećanje, ponašati seponašanje — behavior. All of them are neuter and decline like polje. The meaning is the action itself or its result — the same zone as the English -ing and -tion words.

From an adjective — the suffix -ost. The fleeting a drops out, the suffix takes its place: usamljenusamljenost — loneliness; pouzdanpouzdanost — reliability; drzakdrskost — audacity; mogućmogućnost — possibility; ozbiljanozbiljnost. All -ost words are feminine and decline like stvar: bez mogućnosti, o usamljenosti. There are exceptions — vrednoća instead of the expected vrednost in the sense of diligence — but few.

Why learn this when you could just learn the words? Because gender and case come out of the suffix instead of the dictionary: meeting an unfamiliar uverenje, you already know it is neuter and pluralizes to uverenja; seeing pouzdanost you know it is feminine with the of-form pouzdanosti.

And one trap that makes learners invent nonexistent words. Serbian -nje gives a process, not a thing: grejanje — heating as a process, while the radiator is a radijator; pakovanje — the packing, though it can also be the package itself; but obaveštenje has already become a thing — the message itself. Where the language has claimed the slot with a ready word, the verb noun is not admitted: a repair is popravka, not "popravljanje", though that word is formally possible.

Table

-nje and -ost: a noun from a verb, a noun from an adjective
the source wordthe noungenderin English
ažuriratiažuriranjeneuterupdate (the act)
podešavatipodešavanjaneuter, pl.settings
saosećatisaosećanjeneutersympathy
ponašati seponašanjeneuterbehavior
obavestitiobaveštenjeneutera notification
usamljenusamljenostfeminineloneliness
mogućmogućnostfemininepossibility
drzakdrskostfeminineaudacity

By example

  • Ажурирање је стигло ноћас и променило подешавања
    Ažuriranje je stiglo noćas i promenilo podešavanja
    The update arrived overnight and changed the settings
  • Његово понашање је било велико разочарање за све нас
    Njegovo ponašanje je bilo veliko razočaranje za sve nas
    His behavior was a huge disappointment to all of us
  • Усамљеност у новом граду прође за неколико месеци
    Usamljenost u novom gradu prođe za nekoliko meseci
    The loneliness of a new city wears off in a few months

How the rule settles in your head

A rule is not memorized from an explanation. It is memorized from an attempt to use it and a mistake — that is why the app delivers it mixed in with words, not as a separate lesson: it resurfaces exactly where you forgot it.

Frequently asked

-nje and -ost: how does it work in Serbian?

Adult speech stands on nouns the language did not start with: they are built from verbs and adjectives. English does the same with -ing, -tion and -ness; Serbian does it with two suffixes, both predictable enough that you can assemble a new word yourself.

What does it look like in an example sentence Serbian?

“Ажурирање је стигло ноћас и променило подешавања” (Ažuriranje je stiglo noćas i promenilo podešavanja) — The update arrived overnight and changed the settings. A rule is easier to test on sentences like this than to memorize as a wording: what surfaces in conversation is the sentence.

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