1843, "untidy, in a state of disorder or dirtiness," from mess (n.) "state of confusion" + -y (2). Figurative use ("unethical") is attested by 1924. Related: Messily; messiness.
a child's messy eating habits
messianic
Messier
messmate
messrs.
messuage
messy
mestizo
Met
met
meta-
metabolic
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