Where does “nonagreement” come from?

nonagreement (English) comes from English agreement, from Middle English agrement, from Old French agrement, from Old French agreer, from Old French gré, from Latin grātum, from Latin grātus, from Proto-Italic grātos — to express approval; praise; to elevate.

nonagreement (English): Absence of agreement; disagreement, discord; Not...

Definitions

  1. Absence of agreement; disagreement, discord; Not...

Ancestry of “nonagreement”, step by step

nonagreement traces back through two separate lines of ancestry.

via English agreement

StepLanguageWordMeaning
1EnglishagreementAn understanding between entities to follow a...
2Middle EnglishagrementAn understanding, agreement, or state of mutual...
3Old Frenchagrementagreement; accord
4Old Frenchagreerto please; to be pleasing to
5Old Frenchgrépleasure, goodwill; will; step
6Latingrātum
7Latingrātuspleasing, acceptable, agreeable, welcome
8Proto-Italicgrātos
9Proto-Indo-Europeangʷr̥Htóspraised
10Proto-Indo-EuropeangʷerH-to express approval; praise; to elevate

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European gʷerH-Every word from Proto-Indo-European gʷr̥HtósEvery word from Proto-Italic grātos