←
Proto-Indo-Iranian *čáćšma (inherited)
←
Proto-Iranian *čášma (inherited)
←
Middle Persian AYNE (inherited)
←
Middle Persian čšm (mention)
→
Assamese চছমা (derived)
→
Northern Kurdish çav (cognate)
→
Marathi चष्मा (derived)
→
Ossetian цӕст (cognate)
→
Sanskrit चक्षु (cognate)