Where does “thwartest” come from?

thwartest (English) comes from English thwart, from Middle English þwerte, 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 “thwartest”, step by step

thwartest traces back through two separate lines of ancestry.

via English thwart

StepLanguageWordMeaning
1EnglishthwartPlaced or situated across something else; cross,...
2Middle Englishþwerte
3Old Norseþvertacross, athwart
4Old Norseþverrathwart, transverse; adverse, contrary; cross,...
5Proto-Germanicþwerhazcross, adverse
6Proto-Germanicþerh-
7Proto-Indo-Europeanterkʷ-to turn, spin

via English Est

StepLanguageWordMeaning
1EnglishEstestablished
2Middle Englishestegrace, est, favour; pleasure, enjoyment, fun;...
3Old Englishēstwill, consent, favour, grace, liberality,...
4Proto-West Germanic*anstifavour
5Proto-Germanicanstizfavour, affection
6Proto-Germanicunnanąto grant, bestow
7Proto-Indo-Europeanān-to notice; face, mouth
Every word from Proto-Indo-European terkʷ-Every word from Proto-Germanic þerh-Every word from Proto-Germanic þwerhaz