According to the Oxford dictionary the word autism means "A mental condition, present from early childhood, characterized by great difficulty in communicating and forming relationships with other people and in using language and abstract concepts".
According to the Etymology dictionary the word autism comes from German Autismus, coined in 1912 by Swiss psychiatrist Paul Bleuler (1857-1939).
Autism comes from the combination form of Greek autos-"self" + -ism suffix of action or of state.
Other words refered to autos- are: Autopsy, autonomy and autophobia. Refering to -ism are: Sexism, tourism and holism.
We can see the use of the word autism in this article.
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