Home › Words › R › rorationroration/rəʊˈreɪʃən/roration means synonym of dewfall.Among words judged in Lexicurio's Arena, roration ranks #3,412 of 42,747 for Qualifying.roration is pronounced /rəʊˈreɪʃən/.EtymologyBorrowed from Latin rōrātio (“dewfall”).nounSynonym of dewfall.e.g.“With dawn we see the mark of yesternight’s roration.”Definitions & examples from Wiktionary (CC BY-SA 3.0).