Since publication of the novel, the name "Frankenstein" is often used to refer to the monster itself. This usage is sometimes considered erroneous, but usage commentators regard the monster sense of "Frankenstein" as well-established and an acceptable usage. In the novel, the monster however is called "creature", "monster", "fiend", "wretch", "vile insect", "daemon", "being", and "it". Speaking to Victor Frankenstein, the monster refers to himself as "the Adam of your labors", and elsewhere as someone who "would have" been "your Adam", but is instead "your fallen angel."