Definition - A figure of speech where terms that are or seem contradictory are used together.

Example -
jumbo shrimp and bitter sweet

Etymology -
The term was coined as a loan translation of the noun form of the Greek oxymoros, pointedly foolish (from oxys, sharp, and moros, stupid).
Note: The Greek root is itself an oxymoron.

Oxford English Dictionary -
Its first citation — as an English word — is from 1657:
"Oxymoron, […] subtilly foolish."
(J. Smith Myst. Rhet. 121 )

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