Where does “aide-mémoire” come from?

aide-mémoire (French) comes from French aider, from Middle French ayder, from Old French aidier, from Latin adiūtō, from Latin -tō, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

aide-mémoire (French): aide-mémoire, crib

Definitions

  1. aide-mémoire, crib

Ancestry of “aide-mémoire”, step by step

aide-mémoire traces back through two separate lines of ancestry.

via French aider

StepLanguageWordMeaning
1Frenchaiderto help; to aid
2Middle Frenchayderto help; to aid
3Old Frenchaidierto help
4Latinadiūtōto help, serve, assist
5Latin-tōForms here
6Latin-tusForms the past participle of verbs; Forms...
7Proto-Italic-tus
8Proto-Indo-European-tusDerives action nouns from verb roots

via French mémoire

StepLanguageWordMeaning
1Frenchmémoirememory; memo; dissertation, paper
2Middle Frenchmemoirememory
3Old Frenchmemoirememory
4Latinmemoriamemory; the ability to remember; a remembrance, a...
5Latin-iaUsed to form a feminine abstract noun, usually...
6Latin-iusforming adjectives from nouns; nominative neuter...
7Proto-Italic-jōsForms comparative adjectives
8Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “aide-mémoire

Every word from Proto-Indo-European -tusEvery word from Latin -tusEvery word from Latin -tō