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alethiology

[uh-lee-thee-ol-uh-jee]
noun
  1. the branch of logic dealing with truth and error.
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Origin of alethiology

1830–40; < Greek alḗthei(a) truth (alēthḗ(s) true + -ia -ia) + -o- + -logy
Related formsa·le·thi·o·log·ic [uh-lee-thee-uh-loj-ik] /əˌli θi əˈlɒdʒ ɪk/, a·le·thi·o·log·i·cal, adjectivea·le·thi·ol·o·gist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018