In Icelandic, you can easily form abstract nouns that describe relationships, states of mind, and character traits by adding the suffix -skapur. This productive suffix functions much like the English endings "-ship" (as in friendship), "-ness" (as in stubbornness), or "-ery" (as in snobbery).
The Grammar of -skapur
All nouns ending in -skapur are masculine. Because they all share the same ending, they follow a highly predictable declension pattern. Notice how the u drops out in the accusative and dative cases, which changes the definite article ending as well.
| Case | Indefinite | Definite |
|---|
| Nominative | -skapur | -skapurinn |
| Accusative | -skap | -skapinn |
| Dative | -skap | -skapnum |
| Genitive | -skapar | -skaparins |
Relationships and States
One common use of this suffix is to describe human connections, whether they are positive, neutral, or negative.
Behaviors and Character Flaws
The -skapur suffix is also widely used to evaluate how someone acts. It is especially common when calling out immaturity, stubbornness, or bad habits. Let's see how these nouns behave across different cases.
Subject (Nominative)
Direct Object (Accusative)
Driven by a Preposition or Verb (Dative)
Prepositions like á (tired of) or specific verbs like að hætta (to stop doing something) will force the noun into the dative case: