Where does “excretio” come from?

excretio (Late Latin) comes from Latin excernō, from Latin cernō, from Proto-Italic krinō, from Proto-Indo-European krey- — to sift, separate, divide.

excretio (Late Latin): excretion

Definitions

excretion

Ancestry of “excretio”, step by step

Step	Language	Word	Meaning
1	Latin	excernō	to sift out, separate
2	Latin	cernō	to distinguish, divide, separate, sift
3	Proto-Italic	krinō	sift, separate; distinguish, discern; decide
4	Proto-Indo-European	krey-	to sift, separate, divide

Words derived from “excretio”

excrétion
excreção
excreción
excreție

Every word from Proto-Indo-European krey- →Every word from Proto-Italic krinō →Every word from Latin cernō →