Charak Samhita
पूर्वरूपं प्रागुत्पत्ति लक्षणं व्याधेः ॥८॥
॥ Definition of Poorvarupa (premonitory signs)॥ Symptoms that manifest themselves before the appearance of the disease are known as poorvarupa.
english translation
pUrvarUpaM prAgutpatti lakSaNaM vyAdheH ॥8॥
hk transliteration by Sanscript