Pleonasm
PLEONASM (Gr. TrXeovacr^s, from irXtwdfeu', to abound or be superfluous, ir\iov, comparative of iro\vs, many, great, large), redundancy or superfluity in speaking or writing, hence an unnecessary work or phrase. The word, more usually in the Latin form " pleonasmus," is used in pathology of an abnormal growth or formation.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)