A Latin word for “thus,” used to indicate that an apparent error is part of quoted material and not an editorial mistake: “The learned geographer asserts that ‘the capital of the United States is Washingtown [sic].’”
1887, insertion in printed quotation to call attention to error in the original, from L. sic "so, thus," related to si "if," from PIE base *so- "this, that" (cf. O.E. sio "she").