OH is a submissive vowel, which is how the word Tohr can begin and end in a consonant. Although there is only one vowel, the word is still written with two symbols: Toh and Ohr.
The next word in the sentence is roh, which is the normal form of the inverted ohr. Normal and inverted syllables are represented by the same symbols, and native speakers use context to determine the structure when reading.
When two written symbols appear consecutively within the same sentence, they become contracted. In English, we would represent this with an apostrophe (they’re). However, there is no punctuation in Kayzamira. When two syllables are contracted, the second consonant is omitted, which changes the written character.