Where does “thewen” come from?

thewen (Middle English) comes from Old English þēowan, from Proto-Germanic þewjaną, from Proto-Indo-European tekʷ- — to run, to flow.

Ancestry of “thewen”, step by step

thewen traces back through two separate lines of ancestry.

via Old English þēowan

StepLanguageWordMeaning
1Old Englishþēowanto press
2Proto-Germanicþewjanąto enslave, oppress
3Proto-Indo-Europeantekʷ-to run, to flow

via Old English þȳwan

StepLanguageWordMeaning
1Old Englishþȳwanto press, impress, force, press on, urge on,...
Every word from Proto-Indo-European tekʷ-Every word from Proto-Germanic þewjanąEvery word from Old English þēowan