Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
praecento, āre [prae-canto], to sing before, to offer consolation in song: huic Epicurus praecentet, si potest, cum, etc., Cic. Fin. 2, 29, 94 B. and K.; v. Madv. ad loc.