Lewis & Short

Austrō-Afrĭcus, i, m. [1. auster], the south-southwest wind, Gr. Αιβόνοτος, between Auster and Africus, Isid. Orig. 13, 11, 7 (Plin. 2, 47, 46, § 120, and Sen. Q. N. 5, 16 fin. call it Libonotos, and the latter says: Libonotos, qui apud nos sine nomine est).