noun
piccalilli
pik-uh-LIL-ee/ˌpɪkəˈlɪli/
A relish of chopped pickled vegetables in mustard sauce.
The spoonful of piccalilli contains chopped vegetables coated in mustard-yellow sauce.

Etymology
Piccalilli may be a fanciful elaboration of pickle, fitting its meaning as a chopped-vegetable pickle. Its origin is not secure enough to assign meanings to separate pieces.
In context
we'll be cooking 1830s piccalilli today
More examples
- A spoonful of piccalilli adds crunch to my sandwich.
- The mustard sauce gives this piccalilli its yellow color.
- We chop cauliflower and onions for a batch of piccalilli.
Forms
piccalilli
Similar words
- relish
- A broader category, not necessarily made with mustard sauce.
- chowchow
- A similar pickled vegetable relish, often cabbage-based, with varying seasonings.