Where does “odvzdušnit” come from?

odvzdušnit (Czech) comes from Czech vzdušný, from Czech vzduch, from Russian во́здух, from Old Church Slavonic въздоухъ, from Proto-Slavic vъzduxъ, from Proto-Indo-European dʰews-, from Proto-Indo-European dʰew- — to die, pass away; to run, flow.

odvzdušnit (Czech): to bleed a radiator etc

Definitions

to bleed a radiator etc

Ancestry of “odvzdušnit”, step by step

Step	Language	Word	Meaning
1	Czech	vzdušný	air
2	Czech	vzduch	air
3	Russian	во́здух	air
4	Old Church Slavonic	въздоухъ	air; breath
5	Proto-Slavic	vъzduxъ	deep gasp, sigh; air
6	Proto-Indo-European	dʰews-	Alternative form of *dʰwes-; to lose one's...
7	Proto-Indo-European	dʰew-	to die, pass away; to run, flow

Every word from Proto-Indo-European dʰew- →Every word from Proto-Indo-European dʰews- →Every word from Proto-Slavic vъzduxъ →