SO MANY. I love making up terms of endearment, for instance. Something that's kind of like a 'prayer of endearment' that can be used for any kind of relation (family, friends, loves) goes lik
Mo ivarre, mo nares, mo lor, ennelerr
"My chosen home, my steady one, my one star, neverending"
My favorite though is just throwing "Mo ivarre" around after a heart-to-heart conversation.
Innai ne so lorre
"Like the stars above you shine" (it sounds cheesy but Innai ne so Lorre is a common expression of gratitude and/or admiration. Like a "you're insane" but in a good way. From that you also get innare which means idiot, hehe)