The story
- Proto-Iranian · derived from*cwáHdah“army”
- Old Persian · derived from*spādānah“army, adj.”
- Classical Persian · derived fromاِصْفَهَان
- English todayIsfahan
Ultimately derived from Classical Persian اِصْفَهَان (isfahān), from Old Persian *spādānah (“army, adj.”) or *spādānām (“of the armies”), from 𐎿𐎱𐎠𐎭 (spādaʰ, “army”), from Proto-Iranian *cwáHdah (“army”), q.v.
Etymology from Wiktionary, CC BY-SA 4.0.