Are there any derivatives for the word connoisseurship?

There aren't any common derivatives for the word "connoisseurship" in the English language.

Here's why:

* Connoisseurship is already a noun, meaning "the knowledge and discriminating taste of a connoisseur."

* It's not a verb, so you wouldn't have an "-ing" form.

* It doesn't naturally lend itself to adjective or adverb forms.

Instead of derivatives, you might use phrases like:

* A connoisseur of… (e.g., "a connoisseur of wine")

* To have a connoisseurship in… (e.g., "to have a connoisseurship in vintage cars")

* Connoisseurship-level… (e.g., "connoisseurship-level knowledge")

Ultimately, the best way to express the concept of "connoisseurship" depends on the specific context of your writing.