Sanskrit रजनी

← Proto-Indo-Iranian *HráǰaniH (inherited)

← Proto-Indo-Aryan *Hráȷ́aniH (inherited)

← Proto-Indo-European *h₁régʷenih₂ (inherited)

← Proto-Indo-European *h₁régʷos (mention)

← Sanskrit रजस् (mention)

→ Ancient Greek ῥάξ (cognate)

→ Old Armenian արջն (mention)