Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
frĭo, āvi, ātum, 1, v. a., to rub, break or crumble into small pieces: terra, quae facile frietur, Varr. R. R. 1, 9, 7: glaebis terrarum saepe friatis, Lucr. 1, 888: ut inter se tritum tarde frietur, Plin. 12, 19, 42, § 92; 34, 12, 29, § 117: ut gemma in micas frietur, id. 12, 14, 32, § 65: friatum amomum, id. 12, 13, 28, § 49.