Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

mātĕrĭālis, e, adj. [materia], of or belonging to matter, material (post-class.): influxio, Macr. Somn. Scip. 1, 12, 7; 10; Ambros. de Virg. 3, 1, 1.
Hence, adv.: mā-tĕrĭālĭter, according to the occasion (postclass.): in pectore viri iracundia materialiter regnans. Sid. Ep. 8, 11.