perficus

perfĭcus, a, um, adj. [perficio],

• completing, perfecting (poet.): natura, Lucr. 2, 1116.—
• II Subst.: Perfĭca, ae, f., the finishing or completing goddess, she that perfects: natura creatrix, Lucr. 2, 1116.— Of the goddess supposed to preside over sexual indulgence, Arn. 4, 131.