Where does “unvigilance” come from?

unvigilance (English) comes from English vigilance, from Middle French vigilance, from Latin vigilantia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

unvigilance (English): Lack of vigilance

Definitions

  1. Lack of vigilance

Ancestry of “unvigilance”, step by step

unvigilance traces back through two separate lines of ancestry.

via English vigilance

StepLanguageWordMeaning
1EnglishvigilanceAlert watchfulness; Close and continuous...
2Middle Frenchvigilance
3Latinvigilantiavigilance, alertness; wakefulness
4Latin-iaUsed to form a feminine abstract noun, usually...
5Latin-iusforming adjectives from nouns; nominative neuter...
6Proto-Italic-jōsForms comparative adjectives
7Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius