confix

listen to the pronunciation of confix
الإنجليزية - الإنجليزية
An affix which is not divided, and which does not divide a root: thus, a prefix, suffix, or interfix
To make firm; to fix in a particular place or state

a. 1623, William Shakespeare, Measure for Measure:But Tuesday night last gone in's garden-house / He knew me as a wife. As this is true, / Let me in safety raise me from my knees; / Or else for ever be confixed here, / A marble monument!.

An affix consisting of a prefix and suffix affixed simultaneously to the root
{v} to fix or fasten down
To fix; to fasten