Etymology
Advertisement
denouement (n.)

"the solution of a mystery, the winding up of a plot, the outcome of a course of conduct," 1752, from French dénouement "an untying" (of plot), from dénouer "untie" (Old French desnouer) from des- "un-, out" (see dis-) + nouer "to tie, knot," from Latin nodus "a knot," from PIE root *ned- "to bind, tie."

Related entries & more 
Advertisement
*ned- 
Proto-Indo-European root meaning "to bind, tie."

It forms all or part of: annex; annexation; connect; connection; denouement; net (n.) "netting, network, mesh used for capturing;" nettle; nexus; node; nodule; noose.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit nahyati "binds, ties;" Latin nodus "knot;" Old Irish nascim "I bind, oblige;" Old English net "netting, network."
Related entries & more 
peripeteia (n.)

also peripetia, "that part of a drama in which the plot is tied together and the whole concludes, the denouement," 1590s, from Greek peripeteia "a turn right about; a sudden change" (of fortune, in a tragedy), from peri "around" (see peri-) + stem of piptein "to fall," from PIE *pi-pt-, reduplicated form of root *pet- "to rush; to fly."

Related entries & more