urtext

As an adjective prototypical

is constituting or representing an original type of something that others are modelled on, or derived from.

As a noun urtext is

a primitive, seminal, or prototypical example of an artistic genre or the basis of an ideological movement.

As an adjective seminal

is seminal.

As a noun urtext is

a primitive, seminal, or prototypical example of an artistic genre or the basis of an ideological movement.

As nouns the difference between primitive and urtext

is that primitive is an original or primary word; a word not derived from another, as opposed to (derivative) while urtext is a primitive, seminal, or prototypical example of an artistic genre or the basis of an ideological movement.

As an adjective primitive

is of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first.