"My friend is as tired as an old dog."

Translation: Tha mo charaid cho sgìth ri seann chù.

[DenverKnox1]

Why does seann come before chù here? Most adjectives seem to come after nouns

[PhilipWhitaker]

Is cho sgìth ri cù sean rejected because this is a set phrase cho sgìth ri seann chù?

[Ariaflame]

Friend is close enough for 'mo'?

[Felicity62618]

Mo/do/etc used for blood relations only, aig constructions for people you're not related to!

[PhilipWhitaker]

There are a few exceptions to that, such as: mo bhean - my wife, an nighean agam - my daughter.