Where does “nucleo” come from?

nucleo (Latin) comes 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.

nucleo (Latin): to become kernelly, to become hard like a kernel

Definitions

to become kernelly, to become hard like a kernel

Ancestry of “nucleo”, step by step

Step	Language	Word	Meaning
1	Latin	nū̆cleus	(small) nut
2	Latin	nuculea	pertaining to a small nut
3	Latin	-eus	argentum + API → argenteus; ferrum + API →...
4	Ancient Greek	-εῖος	Forms adjectives, usually with a meaning of "of"...
5	Proto-Indo-European	-iHwós	—
6	Proto-Indo-European	-wós	Creates adjectives from verb stems

Every word from Proto-Indo-European -wós →Every word from Latin -eus →Every word from Ancient Greek -εῖος →