شَرُّ تُرْتُمٌ

and تُرْتَمٌ Continual, or constant, evil: (K, TA:) the م is a substitute for the ب of تُرْتَُب; and the former ت is augmentative, because there is no word like جُعْفَرٌ consisting of radical letters. (TA.) [See also رَاتِمًا, above.]