Old Norse síðan

← Faroese síðani (link)

← Old Danish sithæn (link)

← Old Swedish sedhan (link)

← Norwegian Nynorsk sia (link)

→ English sithen (cognate)

→ Danish siden (derived)

→ Faroese síðan (inherited)

→ Westrobothnian sahn (inherited)

→ Icelandic síðan (inherited)

→ Norwegian Bokmål siden (derived)

→ Dutch sinds (mention)

→ Norwegian Nynorsk sidan (derived)

→ Swedish sedan (derived)

→ Swedish sen (derived)