Also, adding to the other post, they add suffix's to words in word walls, see if there is a suffix for possessive or tense on them. I also think UR/O look alike, if you don't know, guess, I have only transcribed 5 word walls and I know some of the words that they use already.

When a word is foreign to the dictionary, the first thing I do is try to replace some runes with ones that look similar - particularly if the word lacks vowels. For this text, you might try D/R, S/Z, and I/L, and see if you get more sensible words that way.

have you tried printing off a copy of the original dragon alphabet then comparing each rune to what it looks closest to.