subclassify

/sʌbˈklæsɪfaɪ/
verb
  1. To divide into smaller groups or categories within a larger classification.
    • Librarians often subclassify books by genre and then by author.
    • The software allows you to subclassify your expenses into travel, food, and utilities.
    • The biologist will subclassify the insects by their wing patterns.
What does "subclassify" mean? | whatsthatwordmean | whatsthatwordmean