[f. as prec. + -ING1.] The action of the vb. FESTER; an instance of this. Also concr. a fester.

1

c. 1440.  Promp. Parv., 158/2. Feestrynge of wowndys, cicatricatio.

2

1541.  R. Copland, Galyen’s Terapeutyke, 2 F j. Vlceres that come nat to festring.

3

1608–11.  Bp. Hall, Medit. & Vowes, II. § 4. What can ensue, but a festering of the part?

4

1804.  Med. Jrnl., XII. 98. It appears more like a common festering produced by a thorn.

5