subonerare
[CL sub-+onerare], to burden or weigh down further, (in quot. transf., of crime) to be subject to harsher punishment (cf.Corp. Gloss. Lat.IV 394: subgravat, ~at).1277et quia istud latrocinium non ~atur quod judicium mortis debeant subire, constitutum est quod committantur collistrigiGaol Del.35b no. 3 m. 51d..