Where does “криза” come from?

криза (Bulgarian) comes from German Krise, from Latin crisis, from Ancient Greek κρίσις, from Ancient Greek κρίνω, from Proto-Hellenic kríňňō, from Proto-Indo-European krinyéti, from Proto-Indo-European krey- — to sift, separate, divide.

криза (Bulgarian): crisis

Definitions

crisis

Ancestry of “криза”, step by step

Step	Language	Word	Meaning
1	German	Krise	crisis
2	Latin	crisis	crisis
3	Ancient Greek	κρίσις	decision, determination, judgment; trial,...
4	Ancient Greek	κρίνω	To separate, divide, part, distinguish between...
5	Proto-Hellenic	kríňňō	—
6	Proto-Indo-European	krinyéti	—
7	Proto-Indo-European	krey-	to sift, separate, divide

Every word from Proto-Indo-European krey- →Every word from Proto-Indo-European krinyéti →Every word from Proto-Hellenic kríňňō →