What is the correct way to say "several, but few" in a single word?

What can transform this:

"to group items into several (but few) categories, ..."

into:

"to group items into {word} categories, ..."

while still conveying the same meaning? I'd like to condense this information into one shorter word.


Limited goes for 7, with some thin characters for proportionally spaced fonts. From dictionary.com:

confined within limits; restricted or circumscribed

Using the phrase "to group items into limited categories", you can quite naturally specify any strict upper amount as the limit.