Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sŭb-hasto, āvi, ātum, 1, v. a. [sub-hasta], to sell by public auction (jurid. Lat. for hastae subicio, palam vendo): res pignori datas. Cod. Just. 7, 53, 3; Sol. 10, 4.