Where does “τετράεδρον” come from?

τετράεδρον (Ancient Greek) comes from Ancient Greek τετράεδρος, from Ancient Greek -ός, from Proto-Hellenic *-os, from Proto-Indo-European -ós — Creates agent nouns from verb stems, denoting...

τετράεδρον (Ancient Greek): triangle-based pyramid

Definitions

triangle-based pyramid

Ancestry of “τετράεδρον”, step by step

τετράεδρον traces back through 3 separate lines of ancestry.

via Ancient Greek τετράεδρος

Step	Language	Word	Meaning
1	Ancient Greek	τετράεδρος	having four faces, tetrahedral
2	Ancient Greek	-ός	Forms agentive or patientive adjectives and nouns from the o-grade of a verbal root
3	Proto-Hellenic	*-os	—
4	Proto-Indo-European	-ós	Creates agent nouns from verb stems, denoting...

via Ancient Greek τετράς

Step	Language	Word	Meaning
1	Ancient Greek	τετράς	the number four; tetrarchy; four-leaved pamphlet,...
2	Proto-Indo-European	kʷetwóres	four
3	Proto-Indo-European	kʷe-	and

via Ancient Greek ἕδρα

Step	Language	Word	Meaning
1	Ancient Greek	ἕδρα	seat, chair, stool, bench; the act of sitting;...
2	Proto-Hellenic	*hédrā	—

Words derived from “τετράεδρον”

Every word from Proto-Indo-European -ós →Every word from Ancient Greek -ός →Every word from Ancient Greek τετράεδρος →