English

endosiphuncle

endo- + siphuncle

Proto-Indo-European *h₁n̥dóm ‘inside’

Proto-Hellenic *éndon

Ancient Greek ἔνδον ‘inner’

English endo-

Ancient Greek σίφων ‘tube, pipe’

Latin sīphō ‘a siphon or tube’

Latin sīphunculus ‘little tube’

Today it means

noun An inner tube in a siphuncle.

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

Etymograph / endosiphuncle