<span class="searchmatch">vigōribus</span> dative/ablative plural of vigor...
nominative vigor vigōrēs genitive vigōris vigōrum dative vigōrī <span class="searchmatch">vigōribus</span> accusative vigōrem vigōrēs ablative vigōre <span class="searchmatch">vigōribus</span> vocative vigor vigōrēs...