Swedish flock

← Danish flok (cognate)

← Faroese flokkur (cognate)

← Proto-Germanic *flukkaz (inherited)

← Old Swedish [[flokker]], [[flukker]] (inherited)

← Icelandic flokkur (cognate)

← Norwegian flokk (cognate)

← Old Norse flokkr (inherited)

→ Swedish vargflock (compound)

→ Swedish flockimmunitet (compound)