Where does “errour” come from?

errour (Middle English) comes from Old French error, from Latin error, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “errour”, step by step

StepLanguageWordMeaning
1Old Frencherrorto err; to make an error
2Latinerrorwandering; wavering, uncertainty; error, mistake,...
3Latin-orused to form a third-declension masculine...
4Proto-Italic-ōsCreates masculine action nouns or result nouns...
5Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
6Proto-Indo-European-oss
7Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “errour

Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin error