ضَارَهُ, aor. يَضِيرُ, inf. n. ضَيْرٌ; (Ṣ, M, A, Mṣb, Ḳ;) as also ضَارَهُ, aor. يَضُورُ, inf. n. ضَوْرٌ; (Ṣ, M, Ḳ;) It (a thing, M, Ḳ) harmed, injured, hurt, mischiefed, or damaged, him; i. q. ضَرَّهُ, (Ṣ, M, Ḳ,) or أَضَرَّ بِهِ. (Mṣb.) You say, هٰذَا مِمَّا لَا يَضِيرُكَ [This is of the things that will not harm thee]: and لَوْ فَعَلْتَهُ لَمْ يَضِرْكَ [Hadst thou done it, it had not harmed thee]: and لَا ضَيْرَ عَلَيْكَ [No harm shall befall thee]. (A.) And مَا يَضِيرُكَ عَلَى الضَّبِّ صِيْدٌ i. q. مَا يَضُرُّكَ q. v. (A in art. ضر.) And Ks says that he had heard (from one of the people of El-' Áliyeh. TA) the phrase لَا يَنْفَعُنِى ذٰلِكَ وَلَا يَضُورُنِى [That will not benefit me, nor will it harm me]. (Ṣ, TA.) See also a reading of a phrase in a trad. cited in art. ضر. conj. 3.