What's the plural form of Delftware? Here's the word you're looking for.
Answer
The noun Delftware can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be Delftware.
However, in more specific contexts, the plural form can also be Delftwares e.g. in reference to various types of Delftwares
or a collection of Delftwares.