Where does “antítesis” come from?

antítesis (Spanish) comes from Latin antithēsis, from Ancient Greek ἀντίθεσις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

antítesis (Spanish): antithesis

Definitions

antithesis

Ancestry of “antítesis”, step by step

antítesis traces back through two separate lines of ancestry.

via Latin antithēsis

Step	Language	Word	Meaning
1	Latin	antithēsis	—
2	Ancient Greek	ἀντίθεσις	opposition, resistance; contradiction; antithesis
3	Ancient Greek	-σῐς	"suffix forming nouns"
4	Ancient Greek	-τις	retained after dentals
5	Proto-Indo-European	-tis	Derives abstract/action nouns from verb roots

via Late Latin antithesis

Step	Language	Word	Meaning
1	Late Latin	antithesis	—

Every word from Proto-Indo-European -tis →Every word from Ancient Greek -σῐς →Every word from Ancient Greek -τις →