Where does “thioxene” come from?

thioxene (English) comes from English thiophene, from English thio-, from Ancient Greek θεῖον, from Ancient Greek θέειον, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

thioxene (English): Any of three possible metameric substances that...

Definitions

Any of three possible metameric substances that...

Ancestry of “thioxene”, step by step

thioxene traces back through two separate lines of ancestry.

via English thiophene

Step	Language	Word	Meaning
1	English	thiophene	Any of a class of aromatic heterocyclic compounds...
2	English	thio-	containing sulfur / sulphur, especially a...
3	Ancient Greek	θεῖον	divinity; the acts of the gods; Sulfur
4	Ancient Greek	θέειον	—
5	Proto-Indo-European	dʰewh₂-	smoke; mist, haze

via English xylene

Step	Language	Word	Meaning
1	English	xylene	Any of a group of three isomeric aromatic...
2	English	xyl-	Alternative form of xylo-

Every word from Proto-Indo-European dʰewh₂- →Every word from English thio- →Every word from English thiophene →