Where does “airer” come from?

airer (Norman) comes from Old French arer, from Latin arō, from Proto-Italic araō, from Proto-Indo-European h₂éryeti, from Proto-Indo-European h₂erh₃-, from Proto-Indo-European h₁er- — earth.

airer (Norman): to air

Definitions

to air

Ancestry of “airer”, step by step

airer traces back through two separate lines of ancestry.

via Old French arer

Step	Language	Word	Meaning
1	Old French	arer	to plow
2	Latin	arō	to plough, till; to cultivate land, farm; to acquire by tillage
3	Proto-Italic	araō	to plough
4	Proto-Indo-European	h₂éryeti	to be ploughing
5	Proto-Indo-European	h₂erh₃-	to plough
6	Proto-Indo-European	h₁er-	earth

via Norman air

Step	Language	Word	Meaning
1	Norman	air	air (mixture of gases that make up the earth's atmosphere)
2	Latin	āēr	air
3	Ancient Greek	ἀήρ	mist; air; wind
4	Ancient Greek	auhḗr	—

Every word from Proto-Indo-European h₁er- →Every word from Proto-Indo-European h₂erh₃- →Every word from Proto-Indo-European h₂éryeti →