[Ibrîniðilpathânezel]

About the matter of daughters, one can also look at what Tolkien did elsewhere. For the most part, daughters are mentioned by name when they are important to the story --Arwen, Lúthien, Galadriel, etc. -- but not if they aren't. The most notorious example of this omission is the fact that Aragorn's only son, Eldarion, is given a name, but not one of his daughters. They're simply mentioned as existing, but not even their number is given. Finwë was clearly (at least to me) obsessed with Fëanor; I think he noticed his other sons because of their conflict with Fëanor. Daughters? Did they do anything important, or did they have some kind of notable relationship with Fëanor? No? Not worth mentioning, then. The same can be said for the wives of Fëanor's sons. Tolkien did state somewhere (probably in the HoME books, I think) that they were all married, but we don't know a thing about the wives, not even their names.