From The Stargate Omnipedia
Altairan greeting, spoken in conjunction with clapping the hands together and raising them to the sky in a sweeping motion.
"Comtrya" means many different things, and can be used to acknowledge success. It is used in excess by the Altairan Harlan, to the annoyance of others.
Tin Man - SG-1 encounters Harlan, a robotic Altaran who is fond of the term "comtrya."
Double Jeopardy - Not possessing a current iris code, Harlan transmits the word "comtrya" to the S.G.C. to signal that it is he who wishes to come to Earth.