Where does “gastro” come from?

Gastro comes from English gastroenteritis, itself from English enteritis and English -itis, ultimately from Ancient Greek ἔντερον meaning intestine, with disputed further etymology.

gastro (English): Gastroenteritis

Definitions

  1. Gastroenteritis

Ancestry of “gastro”, step by step

StepLanguageWordMeaning
1EnglishgastroenteritisInflammation of the mucous membranes of the...
2EnglishenteritisInflammation of the intestines, generally the...
3EnglishenterTo go or come into an enclosed or partially...
4Middle EnglishentrenTo enter to move into an enclosed or demarcated space
5Old Frenchentrerto enter
6Latinintrōto enter, go into, come in, get in, penetrate
7Latinintrawithin; inside; during; less than
8Latininterus
9Proto-Indo-Europeanh₁énterosinside, within
10Proto-Indo-European-terosContrastive or oppositional adjectival suffix

Words derived from “gastro

Every word from Proto-Indo-European -teros
gastro — Etymology, Origin & Word History | Etymology Explorer