inking

noun4

1. •
   An application of ink.

   • In a rotary printing-machine, a cylinder carrying a single relief design, means for imparting successive complete inkings to said design […] — 1900
2. •
   Work done by an inker, one kind of commercial artist
3. •
   Inputting text or drawings into a computer, tablet, or similar apparatus using a stylus.
4. •
   A defensive activity where ink is released by squids, cuttlefish, etc.