Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. ūdo, āvi, āre, v. a. [udus], to wet, moisten (post-class.): quae udanda sunt corporis (opp. siccanda), Macr. S. 7, 12: labra vappā, Aug. Mor. Manich. 2, 13 fin.
2. ūdo (ōdo), ōnis, m., = οὐδών, a sock of felt or fur, Mart. 14, 140 in lemm.; Dig. 34, 2, 25, § 4.