Similar to effreno
- effregi – break open, to break
- effrenus – unbridled, unchecked, unrestrained, wild
- infreno – break in, check, restrain, to bridle
- refreno – rein in, to check
- sereno – make calm, serene, to make clear
- effluvium – an outlet, seepage
- effloresco – bloom, break out, to blossom