Where does “Արարատյան դաշտ” come from?

Արարատյան դաշտ (Armenian) comes from Armenian դաշտ, from Old Armenian դաշտ, from Middle Iranian dašt, from Old Iranian daxšta-.

Ancestry of “Արարատյան դաշտ”, step by step

Step	Language	Word	Meaning
1	Armenian	դաշտ	field; playing field, sports ground; field,...
2	Old Armenian	դաշտ	field, country, soil, heath, fallow ground,...
3	Middle Iranian	dašt	—
4	Old Iranian	daxšta-	—

Արարատյան դաշտ — Etymology, Origin & Word History | Etymology Explorer