Re-tort, fferyllwydryn; gwrthsen: gwrthsenu
Re-trace, adolrhain
Re-tract, dadgyffesu, dad-ddywedyd
Re-treat, cil, encil: cilio, encilio
Re-trench, amgloddio; amddiffyn
Re-turn, dychwel, dychweliad: dychwel
Re-veal, datguddio, egluro
Re-venge, dialedd: dialeddu, dial
Re-vere, parchu, anrhydeddu
Re-verse, tro, troad, cyfnewidiad: gwrthdroi, gwrthwynebu