Definition of labefaction in English:

labefaction

noun

Archaic
  • [mass noun] Deterioration or downfall.

    • ‘Several experts have been brought in to plan the labefaction of Napoleon.’
    • ‘The English language and the English sense of humour are the best things about our country; the latter lies in no danger of labefaction, but the former must be handled with care.’
    undoing, ruin, ruination, loss of power, loss of prosperity, loss of status
    View synonyms

Origin

Early 17th century: from Latin labefactio(n-), from labefacere weaken, from labi to fall + facere make.

Pronunciation:

labefaction

/ˌlabɪˈfakʃ(ə)n/