What's the best name for a non-mutating “add” method on an immutable collection?

Question

Sorry for the waffly title - if I could come up with a concise title, I wouldn\'t have to ask the question.

Suppose I have an immutable list type. It has an operat

Answer 1

A few random thoughts:

• ImmutableAdd()
• Append()
• ImmutableList(ImmutableList originalList, T newItem) Constructor