Where does “desinfisering” come from?

desinfisering (Norwegian Nynorsk) comes from Norwegian Nynorsk desinfisere, from Norwegian Nynorsk desinfeksjon, from French désinfection, from French infection, from Old French infection, from Latin infectio, from Latin -tiō, from Latin dissertātiō — small stone, pebble; gravel, rubble.

desinfisering (Norwegian Nynorsk): disinfection

Definitions

disinfection

Ancestry of “desinfisering”, step by step

Step	Language	Word	Meaning
1	Norwegian Nynorsk	desinfisere	to disinfect
2	Norwegian Nynorsk	desinfeksjon	disinfection
3	French	désinfection	disinfection
4	French	infection	infection; stench, stink
5	Old French	infection	infection
6	Latin	infectio	infection
7	Latin	-tiō	tion, -ation, -ing
8	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
9	Latin	dissertus	arranged, disposed; explained
10	Latin	disserere	second-person singular future passive indicative...
11	Latin	dis-	asunder, apart, in two; reversal, removal;...
12	Latin	calceus	shoe
13	Latin	calx	limestone; chalk; the finish line
14	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →