Finnish word aste-ero comes from Finnish ero, Finnish aste

Detailed word origin of aste-ero

Dictionary entry	Language	Definition
ero	Finnish (fin)	Difference, distinction. Discharge, dismissal. Divorce; used as a short form of avioero. Resignation. Rid; in the expression "to get rid of something" (päästä/hankkiutua eroon jostakin).. Separation, parting.
aste	Finnish (fin)	(everyday usage) degree, degree Celsius (short for celsiusaste). Degree. Grade. Order.
aste-ero	Finnish (fin)	Difference in degree.