Lewis & Short

ăpŏlŏgĭa, ae, f., = ἀπολογία, a defence, apology, Hier. ap. Ruf. 2, 4; 2, 6 al.
Also, the title of a work by Apuleius of Madaura; cf. Bähr, Gesch. Rom. Lit. p. 411; Teuffel, Rom. Lit. § 362.