Noah Webster's Dictionary 1. (n.) To generate pus; to become inflamed and suppurate; as, a sore or a wound festers. 2. (n.) To be inflamed; to grow virulent, or malignant; to grow in intensity; to rankle. 3. (v. t.) To cause to fester or rankle. 4. (n.) A small sore which becomes inflamed and discharges corrupt matter; a pustule. 5. (n.) A festering or rankling.

Multi-Version Concordance Fester (1 Occurrence) Psalms 38:5 My wounds are loathsome and corrupt, Because of my foolishness. (See JPS NAS RSV NIV)