prodromus

About 0.03 uses per million words.

Meaning

1. noun A prodrome; an early symptom.
2. noun A preliminary course or publication; used especially in the titles of elementary or introductory works on a subject.

Similar words

prodrome prodroma prodromalness precursory prediagnosis foretoken prophasis minging prophylaxy pre-echo

Often followed by

of florae systematis coptus to syst was astronomiae cometicus