Definition of advocatus diaboli in English:

advocatus diaboli

noun

  • Devil's advocate.

Origin

Early 19th century; earliest use found in Henry Crabb Robinson (1775–1867), diarist and journalist. From post-classical Latin advocatus diaboli from classical Latin advocātus + diabolī, genitive of diabolus.

Pronunciation:

advocatus diaboli

/advəˌkɑːtəs dɪˈabəli//advəʊˌkeɪtəs dʌɪˈabəlʌɪ/