English
iminopeptide
From imino + peptide.
Proto-Indo-European *pékʷ-ye-
…
Ancient Greek πέπτω ‘soften, ripen, boil, cook, bake, digest’
Ancient Greek πεπτόν ‘cooked, digested’
German Pepton
German Peptid
English peptide
Today it means
noun A dehydrogenated peptide in which the -CO-NH-CHR-CO₂- groups are replaced by -CO-N=CR-CO₂-
Language periods are conventional ranges, not dates for this word.
Etymograph / iminopeptide