Where does “thermonuklear” come from?

thermonuklear (German) comes from German nuklear, from Spanish nuclear, from Spanish núcleo, from Latin nū̆cleus, from Latin nuculea, from Latin -eus, from Ancient Greek -εῖος, from Proto-Indo-European -iHwós — Creates adjectives from verb stems.

thermonuklear (German): thermonuclear of, or relating to the fusion of atomic nuclei at high temperatures

Definitions

  1. thermonuclear of, or relating to the fusion of atomic nuclei at high temperatures

Ancestry of “thermonuklear”, step by step

StepLanguageWordMeaning
1Germannuklearnuclear
2Spanishnuclearnuclear; to join up; to unite
3Spanishnúcleonucleus
4Latinnū̆cleus(small) nut
5Latinnuculeapertaining to a small nut
6Latin-eusargentum + API → argenteus; ferrum + API →...
7Ancient Greek-εῖοςForms adjectives, usually with a meaning of "of"...
8Proto-Indo-European-iHwós
9Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -wós
thermonuklear — Etymology, Origin & Word History | Etymology Explorer