Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pīnētum, i, n. [pinus], a pine-wood, pine-grove: cinctaque pinetis nemoris juga Nonacrini, Ov. F. 2, 275; 4, 273; Plin. 27, 8, 43, § 66.