Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word praevolare could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
prae-vŏlo, āvi, 1, v. n., to fly before or in advance (class.): grues in tergo praevolantium colla et capita reponunt, Cic. N. D. 2, 49, 125: aquila velut dux viae praevolavit, Tac. H. 1, 62 (but the correct read., Plaut. Mil. 1, 1, 41, is praeolat, v. praeolo).