Where does “tonoplast” come from?

tonoplast (English) comes from English tono-, from Ancient Greek τόνος, from Proto-Hellenic tónos, from Proto-Indo-European tónos, from Proto-Indo-European ten- — to stretch, to extend.

tonoplast (English): The cytoplasmic membrane surrounding a vacuole,...

Definitions

The cytoplasmic membrane surrounding a vacuole,...

Ancestry of “tonoplast”, step by step

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

Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tónos →Every word from Proto-Hellenic tónos →