Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rĕ-crĕpo, āre, 1, v. n. and a., to sound back, resound, ring, echo (poet.; perh. only in the foll. passages): cava cymbala recrepant, Cat. 63, 29: saepe lapis recrepat Cyllenia murmura (i. e. lyram) pulsus, Verg. Cir. 108.