Where does “twynken” come from?

twynken (Middle English) comes from Old English twincian, from Proto-Germanic twinkōną, from Proto-Germanic twint- — to twinkle.

Ancestry of “twynken”, step by step

StepLanguageWordMeaning
1Old Englishtwincianto wink; twinkle
2Proto-Germanictwinkōną
3Proto-Germanictwint-to twinkle
Every word from Proto-Germanic twint-Every word from Proto-Germanic twinkōnąEvery word from Old English twincian