Where does “photoisomerism” come from?

photoisomerism (English) comes from English isomerism, from English isomer, from English ISO, from Greek ίσος, from Ancient Greek ἴσος, from Ancient Greek δάκτυλος, from Hebrew דקל, from German Dackel — to sire, beget.

photoisomerism (English): isomerism as a result of irradiation by light

Definitions

  1. isomerism as a result of irradiation by light

Ancestry of “photoisomerism”, step by step

photoisomerism traces back through two separate lines of ancestry.

via English isomerism

StepLanguageWordMeaning
1Englishisomerismthe phenomenon of the existence of isomers - the...
2EnglishisomerAny of two or more compounds with the same...
3EnglishISOThe International Organization for Standardization
4Greekίσοςequal; having equal rights
5Ancient Greekἴσοςequal (to); equivalent (to); consistent (to); agreement (to)
6Ancient Greekδάκτυλοςfinger; measure of length, the breadth of a...
7Hebrewדקלpalm tree; date; dachshund
8GermanDackeldachshund; a similar-looking dog, e.g. a basset...
9GermanDachshunddachshund; a similar-looking dog, e.g. a basset...
10GermanDachsbadger; genitive singular of Dach
11Old High Germandahs
12Proto-West Germanicþahsbadger
13Proto-Germanicþahsuzbadger
14Proto-Indo-Europeantótḱus
15Proto-Indo-Europeantetḱ-to create, produce; to cut, hew
16Proto-Indo-Europeanteḱ-to sire, beget

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-
Every word from Proto-Indo-European teḱ-Every word from Proto-Indo-European tetḱ-Every word from Proto-Indo-European tótḱus