Where does “Арвайхээр” come from?

Арвайхээр (Mongolian) comes from Mongolian арвай, from Classical Mongolian ᠠᠷᠪᠠᠢ, from Middle Mongolian ꡝꡘ ꡎ, from Proto-Mongolic *arbaï, from Proto-Turkic arpa, from Proto-Iranian arpacyaH, from Proto-Iranian Hr̥pā́š ~ Hr̥pacáh, from Proto-Indo-Iranian Hr̥pā́ćš ~ Hr̥paćás.

Ancestry of “Арвайхээр”, step by step

Арвайхээр traces back through two separate lines of ancestry.

via Mongolian арвай

StepLanguageWordMeaning
1Mongolianарвайbarley
2Classical Mongolianᠠᠷᠪᠠᠢ—
3Middle Mongolianꡝꡘ ꡎ—
4Proto-Mongolic*arbaï—
5Proto-Turkicarpabarley
6Proto-IranianarpacyaHbarley
7Proto-IranianHr̥pā́š ~ Hr̥pacáh—
8Proto-Indo-IranianHr̥pā́ćš ~ Hr̥paćás—
9Proto-Indo-Iranian-ā́ćšanimal and plant suffix
10Proto-Indo-European-eḱés—

via Mongolian хээр

StepLanguageWordMeaning
1Mongolianхээрwilderness, wasteland

Words derived from “Арвайхээр”

Every word from Proto-Indo-European -eḱés →Every word from Proto-Indo-Iranian -ā́ćš →Every word from Proto-Indo-Iranian Hr̥pā́ćš ~ Hr̥paćás →