veridical (adj.)youdaoicibaDictYouDict[veridical 词源字典]
"speaking truth," 1650s, from Latin veridicus "truth-telling, truthful," from verum "truth," neuter of verus "true" (see very) + dic-, stem of dicere "to speak" (see diction). Related: Veridically.[veridical etymology, veridical origin, 英语词源]