Where does “airstair” come from?

airstair (English) comes from English aïr, from Middle English aire, from Old French air, from Latin āēr, from Ancient Greek ἀήρ, from Ancient Greek auhḗr.

airstair (English): A set of stairs permitting entry to and exit from...

Definitions

A set of stairs permitting entry to and exit from...

Ancestry of “airstair”, step by step

airstair traces back through two separate lines of ancestry.

via English aïr

Step	Language	Word	Meaning
1	English	aïr	—
2	Middle English	aire	air
3	Old French	air	air mixture of gases that make up the earth's atmosphere
4	Latin	āēr	air
5	Ancient Greek	ἀήρ	mist; air; wind
6	Ancient Greek	auhḗr	—

via English stair

Step	Language	Word	Meaning
1	English	stair	A single step in a staircase; A series of steps;...
2	Middle English	steire	staircase, stairs; stair, step; ladder
3	Old English	stǣġer	stair, staircase
4	Proto-Germanic	staigriz	scaffold, platform; stairs
5	Proto-Indo-European	steyǵʰ-	to go

Every word from Ancient Greek auhḗr →Every word from Ancient Greek ἀήρ →Every word from Latin āēr →