Kreetassan language
The Kreetassan language was the spoken language of the Kreetassans. It was a relatively difficult language to master, as some words could have a dozen different meanings. 

Skilled communications officer Hoshi Sato struggled to learn Kreetassan, and commented that it had the most subtle contextual variations she had ever seen in any language. ()

During ritual sectioning of an alvera tree, the person who was performing the splicing of the tree had to repeat a Kreetassan recitation. ()

Spoken language

Words and phrases 
Tostka - "Insult," or some kind of an insult. The universal translator couldn't discern if the speaker was insulted or issuing an insult.

Sasooratt - Roughly "Open the doors."

hwajat - A verb meaning both "mate" and "eat," depending on phonetic emphasis; the former was conveyed by emphasizing the first syllable, thus pronouncing the word "HWA-jat". ()

Examples of spoken language 
The spelling and formatting of the following phrases come from the script for .

Tostka jstratta yroorcoor
(Said in response to being insulted.)

Kjass skjask las?
What did we do wrong?

Hwajat ajhakjahs!
You eat like you mate!

Jhaaratun yiitooratt loorii.
Whatever we've done to offend you, I apologize.

Deelos takaa, seely estos oor-rah. Tenvla nikot pranab boko oor-tah.
(Recited during the ritual sectioning of an alvera tree.) ()

Languages