πυρέσσω pyréssō

Meaning

to be on fire, i.e. (specially), to have a fever

In the King James Version: be sick of a fever

Derivation: from G4443 (πυρά);

Where it is used

• Matthew 8:14 When Jesus arrived at Peter’s house, He saw Peter’s mother-in-law sick in bed with a fever.
• Mark 1:30 Simon’s mother-in-law was sick in bed with a fever, and they promptly told Jesus about her.