Where does “interosseous” come from?

Interosseous comes from Latin interosseous, formed from Latin inter meaning between and Latin osseous meaning bony, ultimately from Proto-Indo-European welH- meaning to turn or roll.

interosseous (English): Between bones

Definitions

  1. Between bones

Ancestry of “interosseous”, step by step

interosseous 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 osseous

StepLanguageWordMeaning
1EnglishosseousOf, relating to, or made of bone; bony
2Latinosseusbone
3Latin-eusargentum + API → argenteus; ferrum + API →...
4Ancient Greek-εῖοςForms adjectives, usually with a meaning of "of"...
5Proto-Indo-European-iHwós
6Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -teros