Definition of delation in US English:

delation

noun

archaic
  • See delate

    • ‘Moreover, the Vatican has recently reaffirmed the need for and propriety of ‘delation,’ that is, secret submissions to church authorities of derogatory information.’
    • ‘I checked back, and I found to my surprise that the ‘delation’ process described there was actually about individuals who denounce their own bishops.’
    • ‘Why else would his unsupported delation have led to my immediate dismissal?’
    • ‘Both regimes depended on delation, or sneaking: a social atrocity that could have ghastly results.’

Pronunciation

delation

/dəˈlāSH(ə)n//dəˈleɪʃ(ə)n/