present participle of coin; the act of making coins or inventing new words and phrases.
From coin + -ing (present participle marker). Maintains the dual meaning of the base verb (minting and word-creation).
The coing of money was so valuable that only kingdoms could legally do it—but coing new words has always been a democratic art, and anyone clever enough can do it.
Complete word intelligence in one call. Free tier — 50 lookups/day.