From Halopedia, the Halo wiki
Good evening. I reverted your edits because they were incorrect. So far, your edits have appeared to be intentional acts of vandalism. However, in the event that your edits were actually made in good faith and were simply the result of misreading the source texts, I recommend that you carefully read the source texts for the topic relevant to your edits before making them, particularly when it comes to spelling. For instance, Ado 'Mortumee is never spelled as "Ado 'Moretumee" in Halo: The Flood, nor is "Uruo 'Losona" a name that is used in Halo: Ghosts of Onyx. Likewise, the source material for the Technological Advancement Tiers spells it "Transsentience" (with two S's).