A suffix is an affix glued onto the end of a word, and in Swedish its main job is to change the word class: a noun becomes an adjective, a verb becomes a noun, an adjective becomes an abstract noun. This is how Swedish turns a small core of roots into a vast vocabulary. But suffixes do something extra and enormously useful: they predict the grammatical gender of the nouns they create. Because gender in Swedish is otherwise hard to guess, derivation gives you one of the very few rules that never fails. This page covers the workhorse suffixes and that gender payoff.
Noun-forming suffixes
These build nouns from other word classes.
-het turns an adjective into an abstract noun — the quality of being that adjective. It is the closest equivalent to English -ness / -ity.
Hans snällhet mot djuren var rörande.
His kindness towards the animals was touching. snäll (kind) + -het → snällhet (kindness).
Det finns en möjlighet att vi hinner.
There's a possibility we'll make it. möjlig (possible) + -het → möjlighet (possibility).
-ning and -ande/-ende turn a verb into a noun naming the action or its result (deverbal nouns).
Läsning är min favoritsysselsättning på kvällarna.
Reading is my favourite activity in the evenings. läsa (to read) + -ning → läsning (reading).
Hennes utbildning tog fem år.
Her education took five years. utbilda (to train/educate) + -ning → utbildning (education/training).
-skap builds nouns of state, relationship or domain — often abstract or collective.
Deras vänskap höll i över fyrtio år.
Their friendship lasted over forty years. vän (friend) + -skap → vänskap (friendship).
The fuller treatment of action nouns is on Deverbal Nouns, and of person-naming suffixes like -are on Agent Nouns.
Adjective-forming suffixes
These build adjectives, usually from nouns or verbs.
-lig is the great all-purpose adjective suffix — roughly English -ly / -able / -al, attaching to nouns to mean "having the quality of."
Tack för att du alltid är så vänlig.
Thank you for always being so kind/friendly. vän (friend) + -lig → vänlig (friendly).
-bar corresponds neatly to English -able / -ible: "able to be X-ed." It attaches to verb stems.
Är de här bären ätbara?
Are these berries edible? äta (to eat) + -bar → ätbar (edible, 'eatable').
Vi behöver en mer hållbar lösning.
We need a more sustainable solution. hålla (to hold/last) + -bar → hållbar (durable, sustainable).
-ig is a very common, somewhat informal adjective suffix meaning "characterised by / full of."
Skjortan blev alldeles blodig.
The shirt got all bloody. blod (blood) + -ig → blodig (bloody).
Det blev en solig och varm eftermiddag.
It turned into a sunny and warm afternoon. sol (sun) + -ig → solig (sunny).
-isk forms adjectives of relation, especially from names, fields and -ism nouns — close to English -ic / -ical.
Det är en historisk byggnad från 1600-talet.
It's a historic building from the 17th century. historia (history) + -isk → historisk (historical).
The hidden payoff: suffix predicts gender
Here is the rule worth circling. Gender in Swedish — en versus ett — is mostly unpredictable from a noun's form, which is why learners dread it. But derived nouns are the exception: their suffix all but fixes their gender. The big four abstract-noun suffixes:
| Suffix | Gender | Example |
|---|---|---|
| -het | en | en möjlighet, en snällhet |
| -ning | en | en utbildning, en läsning |
| -else | en | en rörelse, en händelse |
| -skap | en (usually) | en vänskap, en kunskap |
The first three — -het, -ning, -else — are en-words without exception. So the moment you spot one of those suffixes, you know the article, the definite ending, and the adjective agreement with no memorisation. -skap is usually en for abstract states (vänskap, kunskap, egenskap) but flips to ett for a handful of concrete or collective nouns (ett landskap, ett sällskap, ett medlemskap, ett budskap) — so treat -skap as a strong tendency rather than an iron law.
Möjligheten finns kvar, men tiden är knapp.
The possibility remains, but time is short. möjlighet is an -het noun → en-word → definite form möjligheten (not *möjlighetet).
Den nya utbildningen lockar många sökande.
The new training attracts many applicants. utbildning is -ning → en-word → 'den nya utbildningen', en-gender agreement throughout.
En oväntad händelse förändrade allt.
An unexpected event changed everything. händelse is -else → en-word → en händelse, definite händelsen.
Choosing the right suffix
The honest difficulty: when you want to derive a word, more than one suffix may seem plausible, and the correct one is partly lexical. -lig and -isk both build adjectives, but you cannot freely swap them — historisk is right, historilig is not; vänlig is right, vänisk is not. As a rough guide, -isk favours stems from names, academic fields and -i/-ism nouns (historisk, logisk, ekonomisk), while -lig favours native nouns and abstract qualities (vänlig, möjlig, dödlig). But there is overlap and exception, so when in doubt, learn the derived adjective as its own vocabulary item rather than generating it.
Hans argument var inte särskilt logiskt.
His argument wasn't especially logical. logik (logic) + -isk → logisk — an -isk stem, not *logiglig.
Orthography
All these suffixes are written solid with the stem: snällhet, utbildning, vänlig, ätbar, historisk, vänskap. The stem's å, ä, ö are preserved (snäll → snällhet, vän → vänlig, möjlig → möjlighet). Watch the double consonant at the seam: snäll keeps both l's in snällhet.
Common Mistakes
❌ ett möjlighet (wrong gender)
Incorrect — every -het noun is an en-word: en möjlighet.
✅ en möjlighet
a possibility.
❌ Den nya utbildninget lockar många. (neuter definite ending)
Incorrect — -ning nouns are en-words, so the definite is utbildningen, not *utbildninget.
✅ Den nya utbildningen lockar många.
The new training attracts many.
❌ Det är en historilig byggnad. (wrong suffix)
Incorrect — the adjective from 'historia' takes -isk: historisk.
✅ Det är en historisk byggnad.
It's a historic building.
❌ Är de här bären ätlig? (wrong suffix + no agreement)
Incorrect — 'edible' is ätbar (-bar), and it must agree in plural: ätbara.
✅ Är de här bären ätbara?
Are these berries edible?
Key Takeaways
- Suffixes attach to the end and change word class: -het, -ning, -skap, -else build nouns; -lig, -bar, -ig, -isk build adjectives.
- -het = -ness/-ity (snällhet); -ning = action noun from a verb (utbildning); -bar = -able (ätbar).
- The big payoff: suffix predicts gender — every -het, -ning, -else noun is an en-word with no exceptions, and -skap is en for abstract nouns (vänskap) with a few concrete ett outliers (ett landskap, ett sällskap).
- -lig vs -isk is partly lexical — learn the derived adjective rather than guessing (historisk, not historilig).
- Write suffixes solid, keep the stem's å/ä/ö and any double consonant (snällhet).
Now practice Swedish
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Start learning Swedish→Related Topics
- Word Formation: OverviewB1 — How Swedish builds new words — and the one skill that unlocks thousands of them. Three engines run the system: COMPOUNDING (the dominant one, written solid: sjukhus, barnvagn), derivation by prefix and suffix (o-, be-, -het, -lig), and the -s genitive. Because compounds are so freely built and always right-headed, the real learner skill is DECOMPOSING them — read a compound right-to-left and you can understand huge swaths of vocabulary without a dictionary.
- Agent Nouns (-are, -ör, -ist)B1 — How Swedish names the person who does something. The native suffix -are is enormously productive and builds en-words with a ZERO plural (en lärare → flera lärare) and a -na definite plural (lärarna) — so once you recognise an -are noun you never have to memorise its plural. Loan suffixes -ör (frisör), -ist (journalist) and -er (musiker) cover internationalisms, while the old feminine forms -inna/-ska (lärarinna) are now largely obsolete: en lärare is gender-neutral.
- Grammatical Gender: en and ettA1 — Swedish's two-gender system — common-gender en-words (~75%) and neuter ett-words (~25%) — and the honest truth that gender is mostly arbitrary and learned per word. Plus the genuine tendencies that cut the guesswork (unstressed -a is almost always en), and why gender matters: it drives the article, the definite ending, and the -t neuter form on adjectives.
- Deverbal Nouns (-ning, -ande, -nad)B2 — Turning verbs into nouns. -ning names the action or its result (en betalning, en förändring) and is the most productive; -nad gives a few concrete results (en byggnad); and -ande/-ende is the strange one — the very same form is simultaneously a present participle, an adjective, AND a noun (ett leende = 'a smile', leende = 'smiling'). One form, three jobs.