Where does “thuart” come from?

thuart (Middle English) comes from Old Norse þvert, from Old Norse þverr, from Proto-Germanic þwerhaz, from Proto-Germanic þerh-, from Proto-Indo-European terkʷ- — to turn, spin.

Ancestry of “thuart”, step by step

StepLanguageWordMeaning
1Old Norseþvertacross, athwart
2Old Norseþverrathwart, transverse; adverse, contrary; cross,...
3Proto-Germanicþwerhazcross, adverse
4Proto-Germanicþerh-—
5Proto-Indo-Europeanterkʷ-to turn, spin
Every word from Proto-Indo-European terkʷ- →Every word from Proto-Germanic þerh- →Every word from Proto-Germanic þwerhaz →