treacle

The story

1. Ancient Greek · derived fromθηριακή“antidote”
2. Late Latin · derived from*triaca
3. Old English · derived fromtyriaca
4. Old French · derived fromtriacle
5. Middle English · derived fromtriacle
6. English todaytreacle

From Middle English triacle, partly from Old French triacle, and partly from Old English tyriaca, both from Late Latin *triaca, *tiriaca, late form of theriaca, ultimately from Ancient Greek θηριακή (thēriakḗ, “antidote”), feminine form of θηριακός (thēriakós, “concerning venomous beasts”), from θήρ (thḗr, “beast”). Doublet of theriacle, equivalent to theriac + -le.