Where does “arer” come from?

arer (Latin) comes from Latin aro, from Proto-Italic araō, from Proto-Indo-European h₂éryeti, from Proto-Indo-European h₂erh₃-, from Proto-Indo-European h₁er- — earth.

arer (Latin): first-person singular present passive subjunctive...

Definitions

first-person singular present passive subjunctive...

Ancestry of “arer”, step by step

Step	Language	Word	Meaning
1	Latin	aro	I plough, till; I cultivate land, farm; I acquire...
2	Proto-Italic	araō	to plough
3	Proto-Indo-European	h₂éryeti	to be ploughing
4	Proto-Indo-European	h₂erh₃-	to plough
5	Proto-Indo-European	h₁er-	earth

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