In reply to:

Here, at a family celebration or a funeral, if the "focus" of the event is an elderly person, and 1st cousins are represented in that generation, the younger generation can be up to third (or greater) cousins.


This situation is routine here in Zild, among Maaori and Pacific Islanders, but they all tend to use just "cousin" for any relation not an ancestor, sibling, uncle or aunt. Great-uncles etc., are most likely to be called "cousins", and the concept of degrees of cousinship seems alien to them. More than that, they don't care about such intricacies. "If you're kin, you're a cuz", and that's all that matters.