English

endonuclear

From endo- + nuclear.

Proto-Indo-European *h₁n̥dóm ‘inside’

Proto-Hellenic *éndon

Ancient Greek ἔνδον ‘inner’

English endo-

Proto-Italic *knuks ‘nut’

Latin nux ‘nut’

Latin nucleus ‘small nut; kernel’

Today it means

adj endonucleic

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

Etymograph / endonuclear