1927, from French surréalisme (from sur- "beyond" + réalisme "realism"), according to OED coined c. 1917 by Guillaume Apollinaire, taken over by Andre Breton as the name of the movement he launched in 1924 with "Manifeste de Surréalisme." Taken up in English at first in the French form; the Englished version is from 1931.
De cette alliance nouvelle, car jusqu'ici les décors et les costumes d'une part, la chorégraphie d'autre part, n'avaient entre eux qu'un lien factice, il este résulté, dans 'Parade,' une sorte de surréalisme. [Apollinaire, "Notes to 'Parade' "]
See sur- (1) + realism.
-ic
Middle English -ik, -ick, word-forming element making adjectives, "having to do with, having the nature of, being, made of, caused by, similar to," from French -ique and directly from Latin -icus or from cognate Greek -ikos "in the manner of; pertaining to." From PIE adjective suffix *-(i)ko, which also yielded Slavic -isku, adjectival suffix indicating origin, the source of the -sky (Russian -skii) in many surnames. In chemistry, indicating a higher valence than names in -ous (first in benzoic, 1791).
In Middle English and after often spelled -ick, -ike, -ique. Variant forms in -ick (critick, ethick) were common in early Modern English and survived in English dictionaries into early 19c. This spelling was supported by Johnson but opposed by Webster, who prevailed.