Where does “proatherosclerosis” come from?

proatherosclerosis (English) comes from English pro, from English professional, from English profession, from Anglo-Norman professioun, from Old French profession, from Latin professiō, from Latin -tiō, from Latin dissertātiō — small stone, pebble; gravel, rubble.

Ancestry of “proatherosclerosis”, step by step

proatherosclerosis traces back through two separate lines of ancestry.

via English pro

StepLanguageWordMeaning
1EnglishproAn advantage of something, especially when...
2EnglishprofessionalA person who belongs to a profession; A person...
3EnglishprofessionA declaration of belief, faith or one's opinion,...
4Anglo-Normanprofessioun
5Old Frenchprofessionprofession; declaration
6Latinprofessiōdeclaration, avowal, profession (act of professing)
7Latin-tiōtion, -ation, -ing
8Latindissertātiō(spoken) dissertation, discourse, disquisition
9Latindissertusarranged, disposed; explained
10Latindissereresecond-person singular future passive indicative...
11Latindis-asunder, apart, in two; reversal, removal;...
12Latincalceusshoe
13Latincalxlimestone; chalk; the finish line
14Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English atherosclerosis

StepLanguageWordMeaning
1EnglishatherosclerosisThe clogging or hardening of arteries or blood...
2EnglishsclerosisThe abnormal hardening of body tissues, such as...
3Ancient Greekσκλήρωσιςan induration
4Ancient Greekσκληρόω
5Ancient Greekσκληρόςhard; harsh
6Ancient Greekκορμόςtrunk of a tree; log of timber
7Ancient GreekκείρωI shear, shave, cut hair short; I ravage, waste;...
8Proto-Indo-European(s)kér-ye-
9Proto-Indo-European(s)ker-to cut off; to turn, bend
10Proto-Indo-Europeansek-to cut, cut off, sever
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-