Marcesco, marcescis, marcui, marcéscere. Plin. To maxe rotten or corrupted: to become feeble and vnlusstie.Marcescere desidia & orio.Liui.To be loste with slouth and ydlenesse: to be corrupte and marde with.Vino nimio marcescere.Ouid.To be marde and cleane without linenesse with ouer much drinking.Otia marcescunt per inertes somnos.Ouid.Marcescente adhuc stomacho pridiani cibi onere. Suet. The stomacke being yet feeble & wearied with the meate that he had eaten the day before.
Lewis and Short: Latin dictionary
marcesco, ĕre, v. inch. n. [marceo], to wither, pine away, droop, decay (not in Cic. or Cæs.). I.Lit.: fagus et cerrus celeriter marcescunt, Plin. 16, 40, 79, 218: quae spectatissime florent, celerrime marcescunt, id. 21, 1, 1, 2: calamus, Vulg. Isa. 19, 6.—II.Transf., to become weak, feeble, powerless, to pine or waste away, languish: marcescens celerius nominis sui flore,