Where does “газобетон” come from?

газобетон (Bulgarian) comes from Bulgarian газ, from French gaze, from Arabic قَزّ, from Persian کز, from Middle Persian kaž, from Proto-Indo-European keg- — peg; hook.

газобетон (Bulgarian): autoclaved aerated concrete, cellular concrete, porous concrete

Definitions

autoclaved aerated concrete, cellular concrete, porous concrete

Ancestry of “газобетон”, step by step

газобетон traces back through two separate lines of ancestry.

via Bulgarian газ

Step	Language	Word	Meaning
1	Bulgarian	газ	gas; flatulence; petroleum, oil
2	French	gaze	gauze; first-person singular present indicative...
3	Arabic	قَزّ	silk
4	Persian	کز	Alternative form of کژ
5	Middle Persian	kaž	—
6	Proto-Indo-European	keg-	peg; hook

via Bulgarian бетон

Step	Language	Word	Meaning
1	Bulgarian	бетон	concrete material
2	French	béton	concrete; to drop
3	Latin	bitūmen	mineral pitch, bitumen
4	Latin	-men	forms neuter nouns of the third declension
5	Proto-Italic	*-mn̥	—

Every word from Proto-Indo-European keg- →Every word from Middle Persian kaž →Every word from Persian کز →