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tautologous | tôˈtäləɡəs |

adjective

• Logic true by necessity or by virtue of logical form.

DERIVATIVES

tautology | tôˈtäləjē | noun (pl. tautologies).

tautological | ˌtôdlˈäjək(ə)l | adjective.

tautologically | ˌtôdlˈäjək(ə)lē | adverb.

tautologist | -jist | noun.

tautologize | tôˈtäləˌjīz | verb.

ORIGIN

mid 16th cent.: via late Latin from Greek, from tautologos ‘repeating what has been said,’ from tauto- ‘same’ + -logos (see -logy) .

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