"ο Ιάσων" with ο or ω ?

Question

What is the correct spelling of the name "Ιάσων", in ancient and modern Greek?  Is the last vowel ο or ω?

Answer 1

This is the conjugation of the name Ιάσων in ancient Greek:

ὁ Ἰάσων

τοῦ Ἰάσονος

τῷ Ἰάσονι

τόν Ἰάσονα

(ὦ) Ἰάσον

 

Conjugation in modern Greek:

ο Ιάσονας /ο Ιάσων (ancient)

του Ιάσονα /του Ιάσονος (ancient)

τον Ιάσονα

Ιάσονα /Ιάσον (ancient)

 

Therefore in modern Greek the correct nominative form is Ιάσων or Ιάσονας, however the vocative form is Ιάσον or Ιάσονα.

Example:

Ο Ιάσων είναι φίλος μου. (nomonative)

or

Ο Ιάσονας είναι φίλος μου. (nomonative)

but:

Ιάσον, έλα εδω! (vocative)

or

Ιάσονα έλα εδώ! (vocative)