Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
prō-pălam, adv., openly, publicly, notoriously, manifestly (class.): minus jam furtificus sum: rapio propalam, Plaut. Ep. 1, 1, 10: signis propalam collocatis, * Cic. de Or. 1, 35, 161: dicere, Liv. 34, 33: obviam ire, id. 3, 25: alii propalam, alii per occultum, Tac. A. 6, 7: propalam aspici, id. ib. 2, 39: timeo, ne hoc propalam fiat, may become manifest, Plaut. Mil. 4, 8, 38: propalam est, it is clear, manifest (post-class.), Ter. Maur. p. 2435 P.