The story
- Proto-Indo-European*(s)mer-der.?
- Latinmemor
- Latinmemoria
- Old Frenchmemoire
- Middle Frenchmemoire
- Frenchmémoire
- English todaymemoir
Borrowed from French mémoire, from Middle French memoire, from Old French memoire, from Latin memoria. Doublet of memoria and memory.
Etymology from Wiktionary, CC BY-SA 4.0.