Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* Argentiextĕrĕbrŏnĭdes, ae, m., a word formed by Plautus in jest, as the name of one who is skilled in extorting money [argentum-exterebro], a sponger, Plaut. Pers. 4, 6, 21 (cf. id. Capt. 2, 2, 35).