преломление
refractio [onis, f]
баламутить
(per)turbare [1];
ломать
frangere [frarngo, fregi,
pecunia [ae, f] conferenda, colligenda; contributio [onis, f] ; stips, pis, f (stipem conferre); stipendium [ii, n] (stipendia pendere); oblatio [onis, f] ;