Modernized High Valyrian
Although high valyrian is a language occuring in the ancient valyria, in the world of ice and fire, to make it more useful in the modernized world, we need to have new vocabularies relating to technologies. For example, computers. Computers equals to com and putare, which means think together in Latin, and also means calculate. But, there is no word that means calculate in Valyrian, so we can make it up using Hēnkirī and otāpagon, and create something like otāhēnkiri, it ends in i, making it lunar in the fifth declension. I think this can be true for all words, we just need to figure out a pattern to make them.