User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-5963861-20130314020630/@comment-1837917-20130314053930

Well... Xenomorphs, in turn, take their name from xenos, a Greek word which means "stranger" or "foreigner". So if you called it a Xeno Dragon, it'd be a foreign dragon. Also, Capcom tends to split the two words on its monster classifications (if they contain two words), as with Flying Wyvern, Elder Dragon, Piscine Wyvern and Bird Wyvern.