رهق

يَعْدُو الرَّهَقَى ذ He runs quickly, so as to require his pursuer to do what is difficult or what is beyond his power (حَتَّى يُرْهِقَ طَالِبَهُ, or, as in the CK, حتّى يُرْهَقَ طَالِبُهُ [which is virtually the same]): (M, K, TA:) or he runs quickly, so that he almost reaches, or overtakes, (حتّى يَكَادَ يَرْهَقُ,) the object of his pursuit. (JK.)