Monster (?), n. [OE. monstre, F. monstre, fr. L. monstrum, orig., a divine omen, indicating misfortune; akin of monstrare to show, point out, indicate, and monere to warn. See Monition, and cf. Demonstrate, Muster.] 1. Something of unnatural size, shape, or quality; a prodigy; an enormity; a marvel.
[1913 Webster]

A monster or marvel. Chaucer.
[1913 Webster]

2. Specifically , an animal or plant departing greatly from the usual type, as by having too many limbs.
[1913 Webster]

3. Any thing or person of unnatural or excessive ugliness, deformity, wickedness, or cruelty.
[1913 Webster]

Monster, v. t. To make monstrous. [Obs.] Shak.
[1913 Webster]