Where does “фторлау” come from?

фторлау (Kazakh) comes from Kazakh фтор, from Russian фтор, from French phthore, from Ancient Greek φθορά, from Ancient Greek φθείρω, from Proto-Hellenic kʷʰtʰéřřō, from Proto-Indo-European dʰgʷʰér-ye-ti, from Proto-Indo-European dʰgʷʰer- — flow, diverge; perish.

фторлау (Kazakh): fluorination

Definitions

fluorination

Ancestry of “фторлау”, step by step

Step	Language	Word	Meaning
1	Kazakh	фтор	fluorine
2	Russian	фтор	fluorine
3	French	phthore	—
4	Ancient Greek	φθορά	destruction, ruin; passing out of existence,...
5	Ancient Greek	φθείρω	I destroy; I ruin, spoil
6	Proto-Hellenic	kʷʰtʰéřřō	—
7	Proto-Indo-European	dʰgʷʰér-ye-ti	—
8	Proto-Indo-European	dʰgʷʰer-	flow, diverge; perish

Every word from Proto-Indo-European dʰgʷʰer- →Every word from Proto-Indo-European dʰgʷʰér-ye-ti →Every word from Proto-Hellenic kʷʰtʰéřřō →