<span class="searchmatch">difficillimae</span> inflection of difficillimus: nominative/vocative feminine plural genitive/dative feminine singular...
difficillimus difficillima difficillimum difficillimī <span class="searchmatch">difficillimae</span> difficillima genitive difficillimī <span class="searchmatch">difficillimae</span> difficillimī difficillimōrum difficillimārum...