Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
balnĕārĭs, e, adj. [balneum], of or pertaining to a bath (post-Aug. for the foll.): argentum, silver utensils used in baths, Dig. 34, 2, 33: jocus, Spart. Had. 17: vestis, Lampr. Alex. Sev. 42.
Subst.: balnĕā-rĭa, ĭum, n., bathing utensils, App. M. 3, p. 134, 36.