Where does “lustsum” come from?

lustsum (Middle English) comes from Old English lustsum, from Proto-Germanic lustusamaz, from Proto-Germanic -samaz, from Proto-Germanic samaz, from Proto-Indo-European somHós, from Proto-Indo-European sem- — together, one.

Ancestry of “lustsum”, step by step

StepLanguageWordMeaning
1Old Englishlustsumdesirable, pleasing, pleasant
2Proto-Germaniclustusamazpleasing; pleasant
3Proto-Germanic-samazsame as
4Proto-Germanicsamazsame, alike
5Proto-Indo-EuropeansomHóssame, alike
6Proto-Indo-Europeansem-together, one

Words derived from “lustsum”

Every word from Proto-Indo-European sem- →Every word from Proto-Indo-European somHós →Every word from Proto-Germanic samaz →