Where does “endocrine” come from?

Endocrine comes from Ancient Greek ἔνδον (within) and κρίνω (to separate), tracing through Proto-Hellenic éndon and Proto-Indo-European h₁én and krey-.

endocrine (English): Producing internal secretions that are...

Definitions

Producing internal secretions that are...

Ancestry of “endocrine”, step by step

Step	Language	Word	Meaning
1	French	endocrine	—
2	Ancient Greek	κρίνω	To separate, divide, part, distinguish between...
3	Proto-Hellenic	kríňňō	—
4	Proto-Indo-European	krinyéti	—
5	Proto-Indo-European	krey-	to sift, separate, divide

Words derived from “endocrine”

neuroendocrine
endocrinopathy
enteroendocrine
endocrinal
polyendocrine
nonendocrine
immunoendocrine
neuroendocrinal
myoendocrine
proendocrine
endocrinosis
endokrin

Every word from Proto-Indo-European krey- →

endocrine — Etymology, Origin & Word History | Etymology Explorer