πυρέσσω G4445
pyréssō · poo-res'-so · Verb
from πυρά; to be on fire, i.e. (specially), to have a fever:--be sick of a fever.
2 Occurrences in the King James Bible
Matthew 8:14And when Jesus was come into Peter’s house, he saw his wife’s mother laid, and sick of a fever.
Mark 1:30But Simon’s wife’s mother lay sick of a fever, and anon they tell him of her.