Re-cov-er-a-ble, adenilladwy, gwelladwy
Re-crim-i-na-tion, gwrthgyhuddiad
Re-gen-er-a-tion, adgenedliad, adenedigaeth
Reg-u-lar-i-ty, rheoleiddrwydd
Re-nun-ci-a-tion, ymwrthodiad
Re-pos-i-to-ry, ystorfa, ystordy, trysorfa
Rep-re-sent-a-tion, arddangosiad; cynnyrchioliad
Rep-re-sent-a-tive, cynnyrchiolwr; dangosedigol
Re-serv-a-to-ry, ystordy
Re-ta-li-a-tion, atdaliad, gwrthbwyth