I have a list of words that I can sort by name. The list might also contain duplicates, triplicates, quadruplicates etc. The list can also be sorted in such a way that such repetitions show up on time. What should I call this sort mode? "Sort by Duplicity" is the closest I could get. But I was told that it is usually used in a negative sense. I'm looking for alternate suggestions that would ideally be a single word.
If you need a single word, "sort by frequency" sounds the most natural to me:
the number, proportion, or percentage of items in a particular category in a set of data
(source: Merriam Webster)
"Sort by number of appearances/instances" works as well but is a few words longer; what @lly suggests is technically speaking not complete (but will certainly be understood by most users).