What are the units in Age of Mythology saying?

Solution 1:

"Prostagma?" means "Orders?" in Greek.

I have found a partial list of translations here. It includes most of the common ones.

Solution 2:

Someone recently posted one about Norse unit sounds in the Steam Community here:

All Units

Já (yow) - Yes (both question and affirmative)
Ég vil (yer vil) - I will. (I want to)
Skipan? (skeepan?) - Orders / commands?
Samþykkt (samm-thickt) - Agreed.
Tilbúinn! (til-pwin) - Ready!

Villagers

Veiðimaður (vey-thee-mathur) - Hunter.
Fjósamaður (fyoh-sa-mathur) - Farmer. (literally "Barn man")
Timbursveinn (timber-svait-n) - Woodcutter. (literally "timber-lad")
Grjótsveinn (groht-svait-n) - Miner. (literally "rock-lad")
Satt (saht) - Right. (literally "truly")
Hver er þar? (kwer-air-thar) - Who is there?

Attacking

Til orrustuslag! (till-orr-ustu-slah) - To battle!
Sækið fram! (sigh-keeth-framm) - Advance forward! / Ride forth!
Atrás! (art-trouse) - Attack! (I believe it's a combination of two words, literally "at" (fight) + "árás" (battle))