Proto-Germanic *kwaljaną

→ English quell (inherited)

→ Old English cwellan (inherited)

→ Danish kvæle (inherited)

→ German quälen (inherited)

→ Middle Dutch quellen (inherited)

→ Middle English quellen (inherited)

→ Old Swedish qvælia (inherited)

→ Limburgish kwèlle (inherited)

→ Dutch kwellen (inherited)

→ Old Norse kvelja (inherited)

→ Old Saxon quellian (inherited)

→ Swedish kvälja (inherited)