Where does “circumintestinal” come from?

circumintestinal (English) comes from English intestinal, from Latin intestinalis, from Latin intestīnum, from Latin intestīnus, from Latin intus, from Latin în, from Latin en, from Proto-Italic en — in.

Ancestry of “circumintestinal”, step by step

circumintestinal traces back through two separate lines of ancestry.

via English intestinal

StepLanguageWordMeaning
1EnglishintestinalRelating to the intestines; Internal
2Latinintestinalisintestinal; pertaining to the intestine
3Latinintestīnumguts, intestines, entrails of the abdomen
4Latinintestīnusinternal in various senses, namely
5Latinintuswithin, inside; at home
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin

via English circum

StepLanguageWordMeaning
1Englishcircum
Every word from Proto-Indo-European h₁én
circumintestinal — Etymology, Origin & Word History | Etymology Explorer