Third declension noun class ending in -ηρ -ερος

[AndreiChura]

Create a third declension regular noun class for nouns ending in -ηρ -ερος. Ex: θυγάτηρ, θυγατέρος; μήτηρ, μητέρος.

[neelsmith]

Both of these examples parse using the data in the current core parser. μήτηρ is an irregular noun; θυγάτηρ belongs to the stem class 0_os.

Closing as resolved