Im-port-a-tion, atgludiad
Im-pos-i-tion, arddodiad, ardrethiad; gormes
Im-pos-si-ble, annichonadwy, ammhosibl
Im-preg-na-ble, anoresgynadwy
Im-pris-on-ment, carchariad
Im-prob-a-ble, annhebygol
Im-pu-ni-ty, angherydd, anghosp
Im-pu-ri-ty, ammhuredd, aflendid
Im-pu-ta-tion, cyfrifiad
In-ac-cu-rate, anghywir; anghynnil