Where does “operative” come from?

operative (Middle English) comes from Middle French operatif, from Latin operativus, from Latin operō, from Latin Opus, from Ancient Greek Ὀποῦς, from Ancient Greek ὀπός, from Proto-Indo-European sokʷós, from Proto-Indo-European sekʷ- — to follow; to see; to say.

Ancestry of “operative”, step by step

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

Words derived from “operative

Every word from Proto-Indo-European sekʷ-Every word from Proto-Indo-European sokʷósEvery word from Ancient Greek ὀπός