Where does “bulwerk” come from?

bulwerk (Middle English) comes from Dutch bolwerk, from Middle Dutch bolwerc, from Middle High German bolwerc, from Middle High German bole, from Old High German bolla, from Proto-West Germanic bollā, from Proto-Germanic bullǭ, from Proto-Indo-European bʰel-.

Ancestry of “bulwerk”, step by step

bulwerk traces back through two separate lines of ancestry.

via Dutch bolwerk

StepLanguageWordMeaning
1Dutchbolwerkbastion, bulwark
2Middle Dutchbolwercbulwark, bastion
3Middle High Germanbolwerc
4Middle High Germanboleplank, beam
5Old High Germanbollaround vessel, bowl
6Proto-West Germanicbollāball; bowl
7Proto-Germanicbullǭround object, ball; round vessel, bowl
8Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
9Proto-Indo-Europeanbʰōl-

via Middle Low German bolwerk

StepLanguageWordMeaning
1Middle Low Germanbolwerk
2Middle Low Germanwerkwork, action; work, works
3Old Saxonwerkwork

Words derived from “bulwerk

Every word from Proto-Indo-European bʰōl-Every word from Proto-Indo-European bʰel-Every word from Proto-Germanic bullǭ