Where does “τόνος” come from?

τόνος (Greek) comes from French tonne, from Latin tunna, from Proto-Celtic tondā, from Proto-Indo-European tend-, from Proto-Indo-European temh₂- — to stretch, string; to cut.

τόνος (Greek): ΄ tonos; note, pitch, tone; shade

Definitions

΄ tonos; note, pitch, tone; shade

Ancestry of “τόνος”, step by step

τόνος traces back through 3 separate lines of ancestry.

via French tonne

Step	Language	Word	Meaning
1	French	tonne	tonne, metric ton; ton; first-person singular...
2	Latin	tunna	tun, box
3	Proto-Celtic	tondā	skin; surface, skin
4	Proto-Indo-European	tend-	to stretch, to extend; to split, cut off
5	Proto-Indo-European	temh₂-	to stretch, string; to cut

via Italian tonno

Step	Language	Word	Meaning
1	Italian	tonno	tuna, specifically
2	Late Latin	tunnus	—
3	Latin	thunnus	tuna
4	Ancient Greek	θύννος	tuna
5	Ancient Greek	θύνω	to rush along

via Ancient Greek τόνος

Step	Language	Word	Meaning
1	Ancient Greek	τόνος	rope, cord; chord; tone, note
2	Proto-Hellenic	tónos	rope, cord; tension
3	Proto-Indo-European	tónos	something stretched; chord, fiber, string
4	Proto-Indo-European	ten-	to stretch, to extend

Words derived from “τόνος”

Every word from Proto-Indo-European temh₂- →Every word from Proto-Indo-European tend- →Every word from Proto-Celtic tondā →