detoxification (n.)

1905, "remove poisonous qualities from;" see de- + toxic + -fy. Earlier in the same sense was detoxicate (1867). Of persons, "treat to remove the effects of alcohol or drugs as a step to ending addiction," by 1970. Related: Detoxified; detoxifying.

the end of some nouns of action; see -ate + -ion.

1972 as a verb, "subject (someone) with an addiction to detoxification," a colloquial abbreviation of detoxify; 1975 as a noun, "place for the treatment of alcoholics and drug addicts," a colloquial abbreviation of detoxification (center, facility, etc.).