Board Thread:Questions and Answers/@comment-24.62.142.87-20140331201702/@comment-6697950-20140607171125

Edit: Okay, I found a dictionary that has 魔剣 translated as "magic or cursed sword", so I was apparently wrong. However, seeing as SAO is not supposed to have magic, "cursed sword" would be a less conflicting translation.

Although the sound ma is the pronunciation of both the kanji for "demon" and the first kanji in "magic", the raw specifically used the term 魔剣 (devil/demon + sword). How is it possible to translate the kanji for "demon/devil" as "magic" is beyond me. "Demon sword" and "magical sword" are not identical terms. "magical" implies "having a magic ability", while "demon" would likely imply strength. There's also the fact that there is NO magic in SAO. Even the NPCs that have pseudo magical items don't call it "magic".