Ashokan Prakrit 𑀤𑀠

← Proto-Indo-Iranian *dʰr̥ždʰás (inherited)

← Proto-Indo-Aryan *dr̥ẓḍʰás (inherited)

← Proto-Indo-European *dʰerǵʰ- (root)

← Proto-Indo-European *dʰr̥ǵʰtós (inherited)

← Proto-Indo-European *dʰerǵʰ- (mention)

← Sanskrit दृढ (inherited)