Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ perfūsor, ōris, m. [perfundo], one who pours water over another, a bath-servant, who poured water over the bathers (cf. Cels. 6, 24; Suet. Aug. 82), Inscr. Pompei. ap. Bullet. Napolit. II. 1843, p. 3, and v. Avellino, ib. p. 67; cf.: perfusor, περιχύτης, προσχύτης, Gloss. Cyrill.