English
erraticness
From erratic + -ness.
Formed from erratic + -ness
Proto-Indo-European *h₁ers- ‘to flow’
…
Classical Latin errāticus ‘wandering, roving’
Old French erratique
Middle French erratique
Middle English erratik
English erratic
Today it means
noun The quality of being erratic.
Language periods are conventional ranges, not dates for this word.
Etymograph / erraticness