Where does “obsessionalism” come from?

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

obsessionalism (English): obsessive behaviour

Definitions

  1. obsessive behaviour

Ancestry of “obsessionalism”, step by step

obsessionalism traces back through two separate lines of ancestry.

via English obsessional

StepLanguageWordMeaning
1EnglishobsessionalMarked by obsession
2EnglishobsessionA compulsive or irrational preoccupation; An...
3Latinobsessiōblockade, siege
4Latinobsiderepresent active infinitive of obsideō;...
5LatinobsideoI sit, remain, abide, stay; I frequent, haunt,...
6Latinob-towards; against
7Latinobolusobolus (Greek coin)
8Ancient Greekὀβολόςobol, obolus, used at Athens as both a weight and...
9Ancient Greekὀβελόςa spit, rod; a horizontal line
10Ancient Greekβέλοςmissile, arrow, dart; weapon; something quickly...
11Proto-Indo-EuropeangʷélHos
12Proto-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-