delator
nounEtymology From Middle English delatoures pl, from Latin dēlātor.
1
An accuser; an informer.
- […]his Accuser or Delator[…]1655, James Howell, “To the Rt. Hon, the Lord Mohun”, in Epistolæ Ho-Elianæ. Familiar Letters Domestic and Forren. […], 3rd edition, volume (please specify the page), London: […] Humphrey Mos[e]ley, […], →OCLC: