Where does “intersibling” come from?

intersibling (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.

intersibling (English): Between siblings

Definitions

  1. Between siblings

Ancestry of “intersibling”, step by step

intersibling 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 sibling

StepLanguageWordMeaning
1EnglishsiblingA person who shares a parent; one's brother or...
2Old Englishsiblingrelative, kinsman
3Old English-lingadverbial suffix denoting direction, state or...
4Old Englishlanglong; lasting; old, ancient; advanced
5Proto-West Germaniclanglong
6Proto-Germaniclangazlong
7Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European -terosEvery word from Proto-Indo-European h₁énterosEvery word from Latin interus