User blog comment:Gsimenas/Call Gsi Button/@comment-30251295-20170402122545/@comment-6697950-20170402131552

I was about to write to you about the matter, but I guess I'll settle for covering it here.

First of all, I'm pretty sure you got your names for the swords from Lost Song. However, I suspect that you used the Asian English version or something, because I saw people using a different translation that called the black sword 'Vox Unitas' (Latin for 'voice of unity'), which makes a lot more sense than 'Unity Walks'. This wouldn't be the first time that Latin words are used for names (and not the first time those said Latin words are used incorrectly, such as in this case, as the Japanese version mixes up the order).

Secondly, the author has confirmed that Kirito's swords do not have an official name. The names given in Lost Song were made up by the game makers, not the author. Thus, we do not treat them as official names on the wiki either. The names are only allowed to be used in the trivia of the articles (where they currently are used) and nowhere else.

To answer your questions, according to other editors who have played the game, Vox Unitas/Unity Walks/Unity Vox is the name of the black sword. Asuna's rapier is not named in canon and I don't know how and if it's named in Lost Song.