confix

This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. con- +‎ -fix

confix (plural confixes)

1. (linguistics) An affix consisting of a prefix and suffix affixed simultaneously to the root
   • 2005, Elizabeth Zeitoun, “Tsou”, in The Austronesian Languages of Asia and Madagascar‎, page 265:

     As is demonstrated by m-as-ku, tens are derived from the confix m- ... -hu.

2. (linguistics, rare) An affix which is not divided, and which does not divide a root: thus, a prefix, suffix, or interfix
   • 1982, Igor Aleksandrovič Melʹčuk & Philip Luelsdorff, Towards a Language of Linguistics, page 84:

     22. A PREFIX: a confix which precedes a root.

• (prefix-suffix unit): circumfix, ambifix

• (types of affixes): adfix, affix, ambifix, circumfix, disfix, duplifix, infix, interfix, libfix, postfix, prefix, prefixoid, simulfix, suffix, suffixoid, suprafix, transfix

confix (third-person singular simple present confixes, present participle confixing, simple past and past participle confixed)

1. (obsolete) 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!