Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† pincerna, ae, m., = πιγκέρνης (v. Du Cange, Gloss. Graec. s. h. v.; prop. one who mixes drinks; hence, in gen.), a cupbearer, butler (post-class.), Ascon. Cic. Verr. 2, 1, 26; Lampr. Alex. Sev. 41; Hier. Quaest. in Gen. 40, 1; Inscr. Orell. 2881; Vulg. Gen. 40, 1; id. 2 Esdr. 1, 11.