a minor suggestion: have a setting for the Trevosan words to have your translation above it and maybe a little shrunken down, kinda like how in Japan they use katakana to make it easier for younger players/readers to understand certain words in games/manga
just realized I forgot to specify as a toggle in the settings
for example, I've noted down what olesata means, so now instead of hovering over it the translation is there already
idk how you've implemented it, but if there's several untranslated words in a sentence, it might be annoying having to hover over each individual word to remind yourself what they all mean