Where does “obsessionism” come from?

obsessionism (English) comes from English obsession, from Latin obsessiō, from Latin obsidere, from Latin obsideo, from Latin ob-, from Latin obolus, from Ancient Greek ὀβολός, from Ancient Greek ὀβελός — to throw, reach, pierce; to hit by throwing.

obsessionism (English): obsessiveness

Definitions

  1. obsessiveness

Ancestry of “obsessionism”, step by step

obsessionism traces back through two separate lines of ancestry.

via English obsession

StepLanguageWordMeaning
1EnglishobsessionA compulsive or irrational preoccupation; An...
2Latinobsessiōblockade, siege
3Latinobsiderepresent active infinitive of obsideō;...
4LatinobsideoI sit, remain, abide, stay; I frequent, haunt,...
5Latinob-towards; against
6Latinobolusobolus (Greek coin)
7Ancient Greekὀβολόςobol, obolus, used at Athens as both a weight and...
8Ancient Greekὀβελόςa spit, rod; a horizontal line
9Ancient Greekβέλοςmissile, arrow, dart; weapon; something quickly...
10Proto-Indo-EuropeangʷélHos
11Proto-Indo-EuropeangʷelH-to throw, reach, pierce; to hit by throwing

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 Proto-Indo-European gʷelH-
obsessionism — Etymology, Origin & Word History | Etymology Explorer