Where does “gastropulmonic” come from?

gastropulmonic (English) comes from English gastro, from English gastroenteritis, from English enteritis, from English enter, from Middle English entren, from Old French entrer, from Latin intrō, from Latin intra — Contrastive or oppositional adjectival suffix.

Ancestry of “gastropulmonic”, step by step

gastropulmonic traces back through two separate lines of ancestry.

via English gastro

StepLanguageWordMeaning
1EnglishgastroGastroenteritis
2EnglishgastroenteritisInflammation of the mucous membranes of the...
3EnglishenteritisInflammation of the intestines, generally the...
4EnglishenterTo go or come into an enclosed or partially...
5Middle EnglishentrenTo enter to move into an enclosed or demarcated space
6Old Frenchentrerto enter
7Latinintrōto enter, go into, come in, get in, penetrate
8Latinintrawithin; inside; during; less than
9Latininterus
10Proto-Indo-Europeanh₁énterosinside, within
11Proto-Indo-European-terosContrastive or oppositional adjectival suffix

via English pulmonic

StepLanguageWordMeaning
1EnglishpulmonicOf, pertaining to, or produced by the lungs;...
2Medieval Latinpulmonicus
3LatinpulmōA lung
4Ancient Greek-λογίαBase for nouns denoting the study of something,...
5Ancient GreekλόγοςThat which is said: word, sentence, speech,...
6Ancient GreekλέγωI put in order, arrange, gather; I choose, count,...
7Proto-Indo-Europeanleǵ-to gather, collect, with derivatives meaning to...
Every word from Proto-Indo-European -terosEvery word from Proto-Indo-European h₁énterosEvery word from Latin interus
gastropulmonic — Etymology, Origin & Word History | Etymology Explorer