Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ ob-dulcesco, dulcui, 3, v. inch. n., to become sweet: obdulcesco, περιγλυκύνομαι, Gloss. Philox.: in earum familiaritate obdulcuisses mihi, Aug. Conf. 7, 20, 2.