imago vs prototype

imago and prototype both are nouns.

Word	Noun	Adjective	Verb	Adverb
imago	Yes	No	No	No
prototype	Yes	No	No	No

As nouns, prototype is a hypernym of imago; that is, prototype is a word with a broader meaning than imago:

imago: (psychoanalysis) an idealized image of someone (usually a parent) formed in childhood
prototype: a standard or typical example

Other hypernyms of imago include epitome, image, paradigm.

imago (noun)	prototype (noun)
an adult insect produced after metamorphosis	a standard or typical example
(psychoanalysis) an idealized image of someone (usually a parent) formed in childhood