suf-fringo (subf-), ĕre, v. a. [frango],
to break below , to break (rare but class.): talos alicui, Plaut. Rud. 4, 4, 15; id. Truc. 2, 8, 8: crura alicui, * Cic. Rosc. Am. 20, 56: ossa ejus, Lact. 4, 26, 32.
suffringō —, —, ere sub+frango, to break below, break : crura vobis. ...
An Elementary Latin Dictionary