Where does “teorien” come from?

teorien (Middle English) comes from Old English tȳrian.

Ancestry of “teorien”, step by step

teorien traces back through two separate lines of ancestry.

via Old English tȳrian

StepLanguageWordMeaning
1Old Englishtȳrian—

via Old English tēorian

StepLanguageWordMeaning
1Old Englishtēorianto fail, cease, become weary, be tired,...

Words derived from “teorien”

Every word from Old English tȳrian →