Learn Swedish: Vi måste anpassa oss för trivselns skull. - We must adapt ourselves for the sake of well-being.

The phrase för ... skull means "for the sake of [something or someone]". The word that comes between them must be in the possessive (genitive) form. Here, it wraps around trivselns (the well-being's) to mean "for the sake of well-being".

Why does trivselns end in -ns?

The base noun is en trivsel (well-being or comfort). First, we make it definite: trivseln (the well-being). Then, because it is used inside the för ... skull structure, we add the possessive -s, making it trivselns.

Why do we need oss after anpassa?

The verb anpassa (to adapt) is used reflexively here as anpassa sig (to adapt oneself). Since the subject is vi (we), the reflexive pronoun must match it, becoming oss (ourselves). Without oss, the sentence would feel incomplete, as if you were adapting something else rather than yourselves.

What exactly does trivsel mean in Swedish culture?

Trivsel translates roughly to "well-being," but it specifically refers to a sense of comfort, thriving, and a pleasant, cooperative atmosphere in a group environment, like a workplace or home. It is closely related to the common verb trivas (to enjoy oneself or feel comfortable in a place).