"beginning" is to "prefix" as "end" is to "suffix" as "middle" is to... what?
The word "prefix" describes something affixed to the beginning of a word and the word "suffix" describes something affixed to the end of a word. What is the analog of these for something affixed to or making up the middle of a word?
Solution 1:
The word is "infix". SOED: 2. *Gram. an affix inserted into a word.