in-

prefix

Etymology: PIE word *né From Middle English in-, borrowed (in words of latinate origin) from Latin in- (“not”). Sometimes the Latin word has passed through French before reaching English (e.g. incapable, incertainty, inclement, incompatible). Doublet of un-.

1. Used with certain words to reverse their meaning.

   “ig- before n, e.g. ignoble il- before l, e.g. illegal im- before b, m, or p, e.g. improper ir- before r, e.g. irresistible”

2. Used with certain words to reverse their meaning.

   “inedible”

   “inaccurate”

3. Used with certain words to reverse their meaning.

   “incredulity”

   “ineptitude”

4. Used with certain words to reverse their meaning.

   “inannihilable”

   “inappellable”