Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† cŏtŭla (cŏtyla), ae, f., = κοτύλη, a small vessel, as a measure, equal to a hemina or half a sextarius, Fann. Pond. 12; Mart. 8, 71, 8; Veg. Art. Vet. 3, 6, 8 al.