Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
scĭda or schĕda, ae, f., = σχίδν, σχέδη, a strip of papyrus bark, Plin. 13, 12, 23, § 77.
Form scheda, a leaf or sheet of paper, Cic. Att. 1, 20, 7; id. Fam. 15, 16, 1; Quint. 1, 8, 19; Mart. 4, 89, 4 (form scheda; al. scida).