Origin of amazement?

The Tempest, Act I, Scene 2,  Prospero to Miranda, "Be collected; No more amazement; tell your piteous heart that there is no harm done."
The verb to amaze had been in circulation since the mid 1500s. Shakespeare popularised converts this existing verb into a new nounamazement.

The technical term for this process is a functional shift or nominalization.

Earliest OED citation1553