Finnish word asteittain comes from Finnish astua

Detailed word origin of asteittain

Dictionary entry	Language	Definition
astua	Finnish (fin)	(intransitive) to step on, tread on, pace, stride. (transitive, agriculture) to mount, serve, breed, cover, sire. To enter.
aste	Finnish (fin)	(everyday usage) degree, degree Celsius (short for celsiusaste). Degree. Grade. Order.
asteittain	Finnish (fin)	By degrees (in small steps). Gradually.

Words with the same origin as asteittain