From watching Stargate Sg1 Episodes I have found many ancient words used to whom the meaning to is mentioned. Of course I might not have all of them so it you find more please contact me. Also if the definition is wrong, please let me know. I also do not know how these words are written in ancient, below are the pronunciations.

Fr-on:	Head
Cr-oo-vis:	Wrong/bad
Co-sar-s:	Legs
E-tee-o:	Understood
Nu-ani-an qui-ai-tus:	We are the ancients
Ee-go in-dee-o na-vo lo-cas:	I need a new location
Ee-go dis-er-di dis-o-do:	I am a human from earth.
Com-do as-od:	Need Held
De-ren-tes:	Outrageous/Stupid/insane/crazy
Fran-ake:	?
Terra:	Earth
Soo-mo las-ias:	Under the ice
Ay-you-jay:	Good/This is good
Plac-lar-oosh tai-o-na:	Lost in fire
Fa-la-tus:	Ability
Aveo amacuse	Goodbye
Dormata	Sleep
LACCUN	Lost

As you might know Latin is based on ancient and so that is how Dr. Daniel Jackson was able to translate it, but it is still quite different. That is also why you might find some words familiar.

Alphabet: