Ar-a-ble, arodol; arddadwy
Ar-bi-ter, canolwr; barnydd
Arch-an-gel, archangel
Arch-bish-op, archesgob
Ar-chi-tect, adeiladydd, pensaer; saer
Ar-den-cy, angerdd; gwres; taerni
Ar-du-ous, dyrys, anhawdd; caled
Ar-gu-ment, rheswm, dadl; testyn
Ar-mo-ry, arfdy; rhyfelwisg; pais arfau
Ar-range-ment, trefniad; rhestriad