Where does “διευθυντής” come from?

διευθυντής (Greek) comes from Greek διευθύνω, from Ancient Greek δῐᾰ-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

διευθυντής (Greek): manager, director; governor, headmaster;...

Definitions

manager, director; governor, headmaster;...

Ancestry of “διευθυντής”, step by step

Step	Language	Word	Meaning
1	Greek	διευθύνω	to manage, direct, organise UK, organize US
2	Ancient Greek	δῐᾰ-	apart; through, across; through; in different...
3	Ancient Greek	διά	throughout
4	Proto-Indo-European	dwís	twice, doubly; in two
5	Proto-Indo-European	dwóh₁	two

Every word from Proto-Indo-European dwóh₁ →Every word from Ancient Greek δῐᾰ- →Every word from Proto-Indo-European dwís →