Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† branchŏs, i, m., = βράγχος, hoarseness, Cael. Aur. Tard. 2, 7, 95; cf. Isid. Orig. 4, 7, 13.
Branchus, i, m., = Βράγχος, a son of Apollo; or, according to others, of Smicrus of Delphi, inspired by Apollo with prophecy, v. Branchidae, Stat. Th. 3, 479; 8, 198 Schol.