مرتد

murtadd, vulg. murtad (act. part. of ا ر ت دّ 'to return'; 'to apostatize,' etc., viii of ر دّ 'to cause (one) to return,' etc.), s.m. An apostate (esp. fr. Muḥammadanism to disbelief), a renegade:—murtad honā, v.n. To become an apostate, to apostatize.