Where does “tetragastrin” come from?

tetragastrin (English) comes from English gastrin, from English -ín, from English in, from Middle English in, from Old English in, from Proto-West Germanic *in.

tetragastrin (English): cholecystokinin tetrapeptide

Definitions

  1. cholecystokinin tetrapeptide

Ancestry of “tetragastrin”, step by step

tetragastrin traces back through two separate lines of ancestry.

via English gastrin

StepLanguageWordMeaning
1EnglishgastrinA hormone that stimulates the production of...
2English-ínAttached to a word (usually a verb) to denote a protest, demonstration or other type of gathering characterized by the activity denoted by the base word
3EnglishinUsed to indicate location, inclusion, or position...
4Middle EnglishinAny kind of accomodation; particularly; A home or...
5Old Englishinin; Alternative form of inn
6Proto-West Germanic*in

via English tetra

StepLanguageWordMeaning
1EnglishtetraAny of numerous species of small South American...
2TranslingualTetragonopterus
3Ancient Greekπτερόνfeather; wing; Any winged creature
4Proto-Indo-Europeanpéth₂r̥wing; feather
5Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-West Germanic *inEvery word from Old English inEvery word from Middle English in
tetragastrin — Etymology, Origin & Word History | Etymology Explorer