Where does “unerratic” come from?

unerratic (English) comes from English erratic, from Latin errāticus, from Latin -aticus, from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

unerratic (English): Not erratic

Definitions

  1. Not erratic

Ancestry of “unerratic”, step by step

unerratic traces back through two separate lines of ancestry.

via English erratic

StepLanguageWordMeaning
1Englisherraticunsteady, random; prone to unexpected changes;...
2Latinerrāticuswandering, roving
3Latin-aticusUsed to form adjectives indicating a relation to...
4Latin-ātused
5Proto-Italic-ātos
6Proto-Indo-European-éh₂tosForms adjectives from nouns, indicating the possession of a thing or a quality

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -éh₂tos