Where does “arsmetike” come from?

arsmetike (Middle English) comes from Old French arismetique, from Latin arithmeticus, from Ancient Greek ἀριθμητική, from Ancient Greek ἀριθμός, from Proto-Indo-European h₂ri-dʰh₁-mó-s, from Proto-Indo-European h₂rey-, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

Ancestry of “arsmetike”, step by step

StepLanguageWordMeaning
1Old Frencharismetiquearithmetic; arithmetic; arithmetical
2Latinarithmeticusarithmetical
3Ancient Greekἀριθμητικήcounting
4Ancient Greekἀριθμόςnumber; numbering, counting; arithmetic
5Proto-Indo-Europeanh₂ri-dʰh₁-mó-s
6Proto-Indo-Europeanh₂rey-to count, count out; to arrange
7Proto-Indo-Europeanh₂er-to fit, to fix, to put together

Words derived from “arsmetike

Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂rey-Every word from Proto-Indo-European h₂ri-dʰh₁-mó-s