Where does “infection” come from?

Infection comes from Old French infection, derived from Latin infectio (a noun formed from the suffix -tio added to facio, meaning "to make or do"), with the prefix in- attached, ultimately tracing to Proto-Indo-European roots dʰeh₁-, ne, and h₁én.

infection (English): The act or process of infecting; An uncontrolled...

Definitions

The act or process of infecting; An uncontrolled...

Ancestry of “infection”, step by step

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

Words derived from “infection”

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