來(lái)自希臘語(yǔ) tautologos,同義反復(fù)，重說(shuō)，重述，來(lái)自 tauto,相同的，自身的，即 the auto,-log, 說(shuō)話，詞源同 dialogue.引申詞義贅述。
英文詞源
tautology (n.)
1570s, from Late Latin tautologia "representation of the same thing in other words," from Greek tautologia, from tautologos "repeating what has been said," from tauto "the same" (contraction of to auto, with to "the" + auto, see auto-) + -logos "saying," related to legein "to say" (see lecture (n.)). Related: Tautological.
雙語(yǔ)例句
1. Some propositions are true for any truth value of their variables . Such propositions are called tautology.