Where does “dichotomy” come from?

Dichotomy comes from Ancient Greek διχοτομία, composed of Ancient Greek elements meaning "divided into two parts."

dichotomy (English): A separation or division into two; a distinction...

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	διχοτομία	dividing in two; bisection, point of bisection;...
2	Ancient Greek	διχότομος	cut in half, equally divided
3	Ancient Greek	τέμνω	I cut, hew; I maim, wound; I butcher, sacrifice
4	Proto-Indo-European	-né-	Forms mostly transitive imperfective verbs from...