عسف

هُوَ رَاكِبُ التَّعَاسِيفِ ذ means He is one who has no known place of aim, or pursuit: (Msb in art. ركب:) the last word is app. pl. of تَعْسَافٌ, which is of a form common to triliteral-radical verbs, in general. (Msb in the present art.)