←
Proto-Indo-European *swep- (root)
←
Old Norse sofa (inherited)
→
Icelandic sef (mention)
→
Icelandic sefur (mention)
→
Icelandic sofum (mention)
→
Icelandic sofið (mention)
→
Icelandic sofi (mention)
→
Icelandic sofir (mention)
→
Icelandic svaf (mention)
→
Icelandic sváfu (mention)
→
Icelandic svæfi (mention)
→
Icelandic svæfu (mention)