Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† hŏlŏsērĭcus, a, um, adj., = ὁλοσηρικός, all of silk: vestis, Lampr. Heliog. 20; Vop. Aur. 45; id. Tac. 10; Cod. Th. 15, 9, 1.
Collat. form, hŏlŏsērĭcātus, a, um, Aug. in Psa. 85, 3.