Ancient Greek

• (4th AD Koine) IPA^(key): /xθóniyn/

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

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

Adjective

χθόνιοιν • ‎(khthónioin)

1. masculine genitive dual of χθόνιος ‎(khthónios)
2. masculine dative dual of χθόνιος ‎(khthónios)
3. neuter genitive dual of χθόνιος ‎(khthónios)
4. neuter dative dual of χθόνιος ‎(khthónios)