pla·gia·rize \ˈ ̷ ̷( ̷ ̷) ̷ ̷ˌrīz\verb (-ed/-ing/-s) Usage: see -ize Etymology:plagiary + -ize transitive verb : to steal and pass off as one's own (the ideas or words of another) : use (a created production) without crediting the source < a learned book of his … had been coolly plagiarized and issued in short version — Times Literary Supplement > intransitive verb : to commit literary theft : present as new and original an idea or product derived from an existing source