"excessive indulgence in sensual pleasures of any kind," 1640s, from debauch + -ery. With a variety of spellings in 17c., such as debaush-, deboich-, debosh-. Debauchment in the same sense is from 1620s.
debatable
debate
debauch
debauched
debauchee
debauchery
debenture
debilitate
debilitation
debilitative
debility