Truthful

来自Big Physics

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Old English trīewth, trēowth ‘faithfulness, constancy’ (see true, -th2).


文件:Ety img truthful.png

wiktionary

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From truth +‎ -ful.


etymonline

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truthful (adj.)

"habitually speaking truth," 1590s, from truth + -ful. Related: Truthfully; truthfulness.