dissipation (n.)

early 15c., dissipacioun, "disintegration, dissolution," from Latin dissipationem (nominative dissipatio) "a scattering," noun of action from past-participle stem of dissipare "to spread abroad, scatter, disperse; squander, disintegrate" (see dissipate). Sense of "act of wasting by misuse, wasteful expenditure or consumption" is from 1630s; meaning "intemperate mode of living, undue indulgence in pleasure" is from 1784.