per-fūsĭo — Lewis & Short
per-fūsĭo, ōnis, f.id..
I In gen., a pouring over or upon, a wetting, moistening (post-Aug.). perfusio corporis ex aquā calidā, Cels. 4, 8; Plin. 18, 7, 14, § 74.—In plur.:
alarum perfusiones,Plin. 23, 9, 82, § 164.—
II Esp., baptism, Lact. 4, 15, 1.