Where does “Sunnefa” come from?

Sunnefa (Icelandic) comes from Old English Sunnġifu, from Old English sunne, from Proto-West Germanic sunnā, from Proto-Germanic sunnǭ, from Proto-Indo-European sh̥₂uén, from Proto-Indo-European sóh₂wl̥ — sun.

Ancestry of “Sunnefa”, step by step

StepLanguageWordMeaning
1Old EnglishSunnġifuSaint Sunniva
2Old Englishsunnesun
3Proto-West Germanicsunnāsun
4Proto-Germanicsunnǭthe sun
5Proto-Indo-Europeansh̥₂uénsun; the Sun
6Proto-Indo-Europeansóh₂wl̥sun
Every word from Proto-Indo-European sóh₂wl̥ →Every word from Proto-Indo-European sh̥₂uén →Every word from Proto-Germanic sunnǭ →