Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
albēdo, ĭnis, f. [from albus, as atratus from ater], white color, whiteness; only in eccl. Lat.; Sev. Sulp. H. Sacr. 1, 16; Cassiod. Ep. 12, 4.