Old Norse svalr

← German schwül (cognate)

← Proto-Germanic *swalaz (inherited)

← Proto-Germanic *swelaną (mention)

← Ancient Greek σέλας (cognate)

← Proto-Indo-European *swel- (derived)

← Dutch zwoel (cognate)

→ English swale (cognate)

→ Danish sval (derived)

→ German schwelen (cognate)

→ Westrobothnian svalku (inherited)

→ Icelandic svalur (derived)

→ Norwegian Bokmål sval (derived)

→ Norwegian Nynorsk sval (derived)

→ Old Norse svala (mention)

→ Swedish sval (derived)