Where does “adamantinus” come from?

adamantinus (Latin) comes from Ancient Greek ἀδαμάντινος, from Ancient Greek ἀδάμας, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

adamantinus (Latin): adamantine; incorruptible, impregnable;...

Definitions

adamantine; incorruptible, impregnable;...

Ancestry of “adamantinus”, step by step

adamantinus traces back through two separate lines of ancestry.

via Ancient Greek ἀδαμάντινος

Step	Language	Word	Meaning
1	Ancient Greek	ἀδαμάντινος	adamantine, of steel; hard as adamant
2	Ancient Greek	ἀδάμας	adamant, the hardest metal; a hard metal...
3	Ancient Greek	ἀ-	The alpha privativum, used to make words that...
4	Proto-Hellenic	hə-	same; together
5	Proto-Indo-European	sm̥-	one; with, together
6	Proto-Indo-European	sem-	together, one

via Ancient Greek ἀδᾰμάντῐνος

Step	Language	Word	Meaning
1	Ancient Greek	ἀδᾰμάντῐνος	adamantine, of steel
2	Ancient Greek	ἀδάμᾱς	invincible; diamond; steel

Words derived from “adamantinus”

Every word from Proto-Indo-European sem- →Every word from Ancient Greek ἀ- →Every word from Ancient Greek ἀδάμας →