English

gerontomorphosis

From geronto- + morphosis.

Proto-Indo-European *ǵerh₂- ‘to grow old, to mature’

Proto-Indo-European *ǵérh₂onts ‘old’

Proto-Hellenic *géronts

Ancient Greek γέρων ‘old man’

Ancient Greek μορφή ‘form, type’

Ancient Greek μορφόω ‘to form’

Ancient Greek μόρφωσις ‘shaping’

Late Latin morphosis

Today it means

noun Evolutionary change involving extreme specialisation and a reduction in the capability for further change.

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

Etymograph / gerontomorphosis