Where does “interpectoral” come from?

interpectoral (English) comes from English inter, from Middle English enteren, from French entrer, from Middle French entrer, from Old French entrer, from Latin intrō, from Latin intra, from Latin interus — Contrastive or oppositional adjectival suffix.

interpectoral (English): Between the pectoralis muscles

Definitions

  1. Between the pectoralis muscles

Ancestry of “interpectoral”, step by step

interpectoral traces back through two separate lines of ancestry.

via English inter

StepLanguageWordMeaning
1EnglishinterTo bury in a grave; To confine, as in a prison
2Middle Englishenteren
3Frenchentrerto enter
4Middle Frenchentrerto enter
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

via English pectoral

StepLanguageWordMeaning
1EnglishpectoralOf or pertaining to the breast, or chest;...
2Latinpectoralisof or pertaining to the chest or breast; genitive...
3Latinpectuschest, breast; heart, breast, as the seat of...
4Proto-Italicpektos
5Proto-Indo-Europeanpeg-breast
6Englishpolyethylene glycolAny of a series of water-soluble polymers, of...
Every word from Proto-Indo-European -terosEvery word from Proto-Indo-European h₁énterosEvery word from Latin interus