labefactionEnglishOxford New American Dictionarylabefaction /ˌlabəˈfakSHən, ˌlæbəˈfækʃən / ▸ noun archaic deterioration or downfall. – ORIGIN early 17th century : from Latin labefactio(n-), from labefacere ‘weaken’, from labi ‘to fall’ + facere ‘make’.