<span class="searchmatch">prōgressūrōrum</span> genitive masculine/neuter plural of prōgressūrus...
prōgressūra genitive prōgressūrī prōgressūrae prōgressūrī <span class="searchmatch">prōgressūrōrum</span> prōgressūrārum <span class="searchmatch">prōgressūrōrum</span> dative prōgressūrō prōgressūrae prōgressūrō prōgressūrīs...