Where does “operativity” come from?

operativity (English) comes from English operative, from Middle English operative, from Middle French operatif, from Latin operativus, from Latin operō, from Latin Opus, from Ancient Greek Ὀποῦς, from Ancient Greek ὀπός — to follow; to see; to say.

operativity (English): operativeness

Definitions

  1. operativeness

Ancestry of “operativity”, step by step

operativity traces back through two separate lines of ancestry.

via English operative

StepLanguageWordMeaning
1EnglishoperativeEffectual or important; Functional, in working...
2Middle Englishoperative
3Middle Frenchoperatif
4Latinoperativuscreative, formative
5Latinoperō
6LatinOpusThe capital city of the Locri and birthplace of Patroclus
7Ancient GreekὈποῦςOpus, Greece
8Ancient Greekὀπόςjuice, vegetable/plant juice; fig-juice
9Proto-Indo-Europeansokʷósjuice of plants
10Proto-Indo-Europeansekʷ-to follow; to see; to say

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European sekʷ-