<span class="searchmatch">extostōrum</span> genitive masculine/neuter plural of extostus...
extostī extostae extosta genitive extostī extostae extostī <span class="searchmatch">extostōrum</span> extostārum <span class="searchmatch">extostōrum</span> dative extostō extostae extostō extostīs accusative extostum...