Where does “psychophysics” come from?

I need to note that the chain provided traces "physics" (from φυσικός "natural" via φύω "to grow"), but the headword is "psychophysics," which would require "psycho-" + "physics." The chain given doesn't include the "psycho-" component. Given only the chain provided, I can only accurately write about the "physics" portion. However, I'll follow the instruction to write what the chain supports: Physics comes from Ancient Greek φυσικός, itself from φύω meaning to grow, ultimately from Proto-Indo-European bʰuH-. (This is 22 words and doesn't fully address "psychophysics" as requested, but accurately represents only the supported chain.) If you have a chain for the complete "psychophysics," I can provide the full accurate etymology.

psychophysics (English): The branch of psychology concerned with the...

Definitions

  1. The branch of psychology concerned with the...

Ancestry of “psychophysics”, step by step

StepLanguageWordMeaning
1EnglishphysicsThe branch of science concerned with the study of...
2EnglishphysicRelating to or concerning existent materials;...
3Middle Englishfysike
4Old Frenchfisikenatural science, art of healing
5Latinphysicanatural sciences; natural philosophy; physics;...
6Ancient Greekφυσικόςnatural, produced or caused by nature, inborn,...
7Ancient Greekφύσιςorigin, birth; nature, quality, property; later,...
8Ancient GreekφύωTo bring forth, produce, generate, cause to grow;...
9Proto-Indo-EuropeanbʰuHyétito be becoming, to be growing, to be appearing
10Proto-Indo-European-yétiCreates intransitive, often deponent,...
11Proto-Indo-Europeanyé-
12Chichewaiyehe, she
Every word from Chichewa iyeEvery word from Proto-Indo-European -yétiEvery word from Proto-Indo-European bʰuHyéti