Old Norse sofa

← Proto-Germanic *swefaną (inherited)

← Proto-Indo-European *swep- (root)

→ Old English swefan (cognate)

→ Danish sove (inherited)

→ Faroese sova (inherited)

→ Westrobothnian sȯfwa (inherited)

→ Old Swedish sova (inherited)

→ Icelandic sofa (inherited)

→ Norwegian Bokmål sove (inherited)

→ Norwegian Nynorsk sova (inherited)

→ Norwegian Nynorsk sove (derived)

→ Old Norse sofna (suffix)

→ Swedish sova (inherited)

→ Swedish söva (mention)