Ancient Greek

• (4th AD Koine) IPA^(key): /xθónien/

• (10th AD Byzantine) IPA^(key): /xθónien/

• (15th AD Constantinopolitan) IPA^(key): /xθónien/

Adjective

χθόνιαιν • ‎(khthóniain)

1. feminine genitive dual of χθόνιος ‎(khthónios)
2. feminine dative dual of χθόνιος ‎(khthónios)