Where does “unprofessionalism” come from?

unprofessionalism (English) comes from English unprofessional, 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.

unprofessionalism (English): Behaviour that is not professional

Definitions

  1. Behaviour that is not professional

Ancestry of “unprofessionalism”, step by step

unprofessionalism traces back through two separate lines of ancestry.

via English unprofessional

StepLanguageWordMeaning
1Englishunprofessionalunbecoming of a professional; hence inappropriate...
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 ism

StepLanguageWordMeaning
1EnglishismAn ideology, system of thought, or practice that...
2English-ismUsed to form nouns of action or process or result...
3Latin-ismus-ism
4Ancient Greek-ισμόςForms abstract nouns
5Ancient Greek-μόςForms abstract nouns
6Proto-Indo-European-mósCreates action/result nouns from verb stems
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-