Where does “Pentateuchus” come from?

Pentateuchus (Latin) comes from Ancient Greek πεντάτευχος, from Ancient Greek πεντα-, from Ancient Greek πέντε, from Proto-Hellenic pénkʷe, from Proto-Indo-European pénkʷe — five.

Ancestry of “Pentateuchus”, step by step

StepLanguageWordMeaning
1Ancient Greekπεντάτευχοςconsisting of five papyrus rolls or (more generally) five books
2Ancient Greekπεντα-penta-, five; five
3Ancient Greekπέντεfive
4Proto-Hellenicpénkʷefive
5Proto-Indo-Europeanpénkʷefive

Words derived from “Pentateuchus

Every word from Proto-Indo-European pénkʷeEvery word from Ancient Greek πεντα-Every word from Proto-Hellenic pénkʷe