رديف radīf v.n. fr. ردف 'to ride behind'
A رديف radīf (v.n. fr. ردف 'to ride behind'), s.m. One who rides behind another (on the same horse);—the technical name given to one of the letters of prolongation ā, ī, or ū, when it immediately precedes the (rawī, or) essential part of the rhyme (as in the words īmān, ʻus̤mān; fuẓūl, rusūl; tāwīl, tanzīl);—one or more independent words placed after the rhyme at the end of hemistichs or verses (words which ought to be the same throughout the poem), hypermeter (e.g. the word 'thee' in the following: 'There shone such truth about thee, I did not dare to doubt thee'):—radīf-wār, adv. In alphabetical order; according to the last letter of each stanza.