Where does “decamethylcyclopentasiloxane” come from?

decamethylcyclopentasiloxane (English) comes from English deca-, from French déca-, from Latin decās, from Ancient Greek δεκάς, from Ancient Greek -ᾰ́ς, from Proto-Indo-European -ónts, from Hungarian önt, from Hungarian ön — sound, voice.

decamethylcyclopentasiloxane (English): A clear, lightweight liquid used in cosmetics and personal care products. It spreads easily, helps give a smooth, silky feel to skin and hair, and evaporates quickly without leaving much residue

Definitions

A clear, lightweight liquid used in cosmetics and personal care products. It spreads easily, helps give a smooth, silky feel to skin and hair, and evaporates quickly without leaving much residue

Ancestry of “decamethylcyclopentasiloxane”, step by step

Step	Language	Word	Meaning
1	English	deca-	Greek number...
2	French	déca-	deca-
3	Latin	decās	a decade (period of ten years)
4	Ancient Greek	δεκάς	the number ten; a group of ten, decade
5	Ancient Greek	-ᾰ́ς	group of
6	Proto-Indo-European	-ónts	Derives nouns denoting body parts
7	Hungarian	önt	to pour; to cast; accusative singular of ön
8	Hungarian	ön	you
9	Hungarian	ön-	self-
10	Turkish	ön	front
11	Ottoman Turkish	اوك	voice (of human or animal); sound
12	Proto-Turkic	ǖn	sound, voice

Every word from Proto-Turkic ǖn →Every word from Ancient Greek -ᾰ́ς →Every word from English deca- →