Where does “pentanuclear” come from?

pentanuclear (English) comes from English nuclear, from Latin nū̆cleus, from Latin nuculea, from Latin -eus, from Ancient Greek -εῖος, from Proto-Indo-European -iHwós, from Proto-Indo-European -wós — Creates adjectives from verb stems.

pentanuclear (English): Having five nuclei

Definitions

  1. Having five nuclei

Ancestry of “pentanuclear”, step by step

pentanuclear traces back through two separate lines of ancestry.

via English nuclear

StepLanguageWordMeaning
1EnglishnuclearPertaining to the nucleus of an atom; Involving...
2Latinnū̆cleus(small) nut
3Latinnuculeapertaining to a small nut
4Latin-eusargentum + API → argenteus; ferrum + API →...
5Ancient Greek-εῖοςForms adjectives, usually with a meaning of "of"...
6Proto-Indo-European-iHwós—
7Proto-Indo-European-wósCreates adjectives from verb stems

via English penta

StepLanguageWordMeaning
1Englishpenta—
Every word from Proto-Indo-European -wós →Every word from Latin -eus →Every word from Ancient Greek -εῖος →