Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ fūtis, is, f. [id.; cf. futtilis], a watervessel, a pitcher: vas aquarium vocant FUTIM, quod in triclinio allatam aquam infundebant, Varr. L. L. 5, § 119 Müll.