This is the 4969th most frequent Swedish word.
broder
Brother.
In this context, 'broder' is part of a traditional song used to address someone respectfully or affectionately as 'brother.'
Broder Jakob, sover du?
Brother Jakob, are you sleeping?
The word 'broder' is used here as a noun referring to a sibling, specifically a male one.
Min broder är mycket snäll.
My brother is very kind.
The word 'broder' here signifies a metaphorical usage, indicating someone who is considered close or trustworthy like family even if not related by blood.