Where does “kosterbåt” come from?

kosterbåt (Swedish) comes from Swedish båt, from Old Swedish bāter, from Old Norse bátr, from Old English bāt, from Proto-West Germanic bait, from Proto-Germanic baitaz, from Proto-Indo-European bʰeyd-, from Proto-Indo-European bʰey- — bee.

Ancestry of “kosterbåt”, step by step

kosterbåt traces back through two separate lines of ancestry.

via Swedish båt

StepLanguageWordMeaning
1Swedishbåta boat
2Old Swedishbāterboat
3Old Norsebátrboat
4Old Englishbātthat which can be bitten, food, bait; boat, ship,...
5Proto-West Germanicbaitboat, ship
6Proto-Germanicbaitazboat, ship
7Proto-Indo-Europeanbʰeyd-to split
8Proto-Indo-Europeanbʰey-bee

via Swedish koster

StepLanguageWordMeaning
1Swedishkostera koster (type of wide sailboat from Bohuslän)
Every word from Proto-Indo-European bʰey-Every word from Proto-Indo-European bʰeyd-Every word from Proto-Germanic baitaz