prodromus
/ˈprɒdrɒməs/Definitions
1. noun
A preliminary sign or symptom of a disease or condition; a warning sign.
“The patient’s recurring headaches were a prodromus of the severe migraine that followed.”
2. noun
A preliminary or introductory work or publication, especially one that precedes a more complete or definitive work.
“The prodromus to his novel was a short story that gained attention from publishers.”