Where does “costning” come from?

costning (Middle English) comes from Old English costnung, from Old English costnian, from Old English costian, from Proto-Germanic kustōną, from Proto-Indo-European ǵews- — to taste, try.

Ancestry of “costning”, step by step

StepLanguageWordMeaning
1Old Englishcostnungtemptation
2Old EnglishcostnianAlternative form of costian
3Old Englishcostiantry, tempt; prove; examine
4Proto-Germanickustōnąto try; to taste
5Proto-Indo-Europeanǵews-to taste, try

Words derived from “costning

Every word from Proto-Indo-European ǵews-Every word from Proto-Germanic kustōnąEvery word from Old English costian