[Ibrîniðilpathânezel]

Works for me, too. I was thinking that Galadriel would have had to cross mountains more than once, since, if she came across the Helcaraxe, she would have needed to cross mountains to enter Doriath. Unless she decided to sink with the part of Middle-earth that went under during the War of Wrath, she would have eventually needed to cross mountains again, the Blue Mountains that are mentioned, and eventually the Misty Mountains, unless she decided to go around them to get to Lothlorien. When Galadriel says that she (or they) "passed over the mountains," it doesn't necessarily mean a single crossing or a single range. It may just mean she kept moving east until she settled in Lothlorien. And even then, she crossed back over the mountains to go to meetings of the White Council in Rivendell, then crossed them again to go home.