(nik) noun
1. A slight cut, chip, or indentation in the surface or edge of anything.
2. A score or tally: from the use of notched sticks for keeping tally.
3. A point of time; critical moment.
4. Printing A groove on the shank of a type character to aid in correct alinement.
—v.t.
1. To make a nick or nicks in; notch.
2. To record or tally by making nicks.
3. To cut through or into.
4. Slang To cheat or trick.
5. To hit or catch at the exact moment; guess or understand exactly.
6. Brit. Slang To arrest; catch. [Origin uncertain]
—nick′er noun

(nik)
The devil. Also Old Nick. [Nickname of NICHOLAS]