Meaning

adjective of or relating to the early phases of a disease when accurate diagnosis is not possible because symptoms of the disease have not yet appeared

originEtymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Indo-European *-i Proto-Indo-European *préh₂i? Proto-Italic *prai Proto-Italic *prai- Latin prae-lbor. Middle English pre- English pre- Proto-Indo-European *ḱel- Proto-Indo-European *-éyti Proto-Indo-European *ḱley- Proto-Indo-European *-né- Proto-Indo-European *ḱl̥néyti Proto-Hellenic *klíňňō Ancient Greek κλῑ́νω (klī́nō)…

Etymology from Wiktionary, CC BY-SA 3.0