English

endoperidium

From endo- + peridium.

Proto-Indo-European *h₁n̥dóm ‘inside’

Proto-Hellenic *éndon

Ancient Greek ἔνδον ‘inner’

English endo-

Ancient Greek πηρίδιον ‘little pouch’

Today it means

noun The inner layer of a two-layered peridium.

Language periods are conventional ranges, not dates for this word.

Etymograph / endoperidium