Where does “photopolymerisation” come from?

photopolymerisation (English) comes from English photo, from English photography, from French photographie, from Ancient Greek φωτο-, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-.

Ancestry of “photopolymerisation”, step by step

photopolymerisation traces back through two separate lines of ancestry.

via English photo

StepLanguageWordMeaning
1EnglishphotoA photograph; A photo finish; To take a...
2EnglishphotographyThe art and technology of producing images on...
3Frenchphotographiephotography; photograph
4Ancient Greekφωτο-
5Ancient GreekφῶςAttic form of φᾰ́ος
6Proto-Hellenicpʰáos
7Proto-Indo-Europeanbʰéh₂os
8Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
9Proto-Indo-Europeanbʰeh₂-s-ri-

via English polymerisation

StepLanguageWordMeaning
1EnglishpolymerisationAlternative spelling of polymerization
2Englishpolymerisealternative form of polymerize
3EnglishpolymerA long or larger molecule consisting of a chain...
4Englishpoly-many; polymer
5Ancient Greekπολύςmany, a lot of; neuter πολύ or πολλά as...
6Ancient Greekπόροςa means of passage, passageway, way, opening;...
7Ancient GreekπείρωI pierce, run through; I cleave through
8Proto-Hellenic*péryō
Every word from Proto-Indo-European bʰeh₂-s-ri-
photopolymerisation — Etymology, Origin & Word History | Etymology Explorer