The story
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Proto-Italic*kaussā
- Old Latincaussa
- Latincausa
- Latinaccūsō
- Latinaccūsātor
- Latinaccūsātōrius
- Middle Frenchaccusatorie
- Latinaccūsātōrius
- Middle Englishaccusatorie
- English todayaccusatory
From Middle English accusatorie, from Middle French accusatorie and its etymon Latin accūsātōrius. By surface analysis, accuse + -atory.
First known use, by meaning
- from the early 17th c. Pertaining to, or containing, an accusation.
Etymology from Wiktionary, CC BY-SA 4.0.