Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pressŭlē, adv., v. pressulus fin.
pressŭlus, a, um, adj. dim. [pressus], somewhat pressed in or compressed (postclass.): ampulla pressula rotunditate, App. Flor. p. 346, 26.
Hence, adv.: pressŭlē, while pressing on, against, or to one’s self (post-class.): filium pressule saviata, App. M. 4, p. 156, 38: lacinia adhaerens pressule, closely, id. ib. 10, p. 254, 10.