Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† thymum, i, n., = θύμον, thyme (both the common or Roman, Thymus vulgaris, Linn., and the Cretan or Greek, Satureia capitata, ib.), Plin. 21, 21, 89, § 154; Quint. 12, 10, 25; Verg. E. 7, 37; id. A. 1, 436; Hor. C. 1, 17, 6; 4, 2, 29; id. Ep. 1, 3, 21; Ov. M. 15, 80.
In plur., Ov. F. 5, 272; id. A. A. 1, 96; Mart. 11, 42, 4 al.