1 رَكَسَهُ ذ , (S, Msb,) aor. رَكُسَ , (Msb, TA,) inf. n. رَكْسٌ , (S, A, Msb, K,) He turned it over, or upside down; (S, A, Msb, K;) as also : (S:) or the former, (TA,) or ↓ latter, (Msb,) he turned it over upon its head: (Msb, TA:) and the former, he reversed it; made the first part of it to be last; or turned it fore part behind. (Lth, A, Msb, K.) It is said in the Kur [iv. 90], وَٱللّٰهُ بِمَا كَسَبُوا Since God hath subverted them [ for what they have done, or committed ]; syn. تَكَّسَهُمْ : (IAar, K:) or hath made them return to their unbelief; (Fr, S, K;) and رَكَسَهُمْ signifies the same: (Fr, TA:) or hath separated, or dispersed, them, for what they have done of their disbelief, and acts of disobedience: (Jel:) رَكَسْتُ الشَّىْءَ and both signify I separated the thing; or set it apart. (TA.) You say also, ٱللّٰهُ عَدُوَّكَ May God overturn thine enemy upon his head: or change, or reverse, the state, or condition, of thine enemy. (A.) And فِى الشَّرِّ He turned him back, or caused him to return, to evil. (A.) And الثَّوْبَ فِى الصِّبْغِ Return thou the garment, or piece of cloth, to the dyeing-liquor. (A.)

4 أَرْكَسَ see 1, throughout.

8 ارتكس ذ He, or it, became turned over, upside down, or upon his, or its, head; became inverted, subverted, or reversed; became turned fore part behind: (K, TA:) he returned, reverted, or went back, from one thing or state to another: (TA:) he fell. (K.) You say, ارتكس فُلَانٌ فِى أَمْرٍ كَانَ قَدْ نَجَا مِنْهُ (S, A, TA) Such a one fell [ again ] into a case from which he had escaped. (TA.)

رِكْسٌ ذ i. q. رِجْسٌ [ Uncleanness, dirt, or filth; or an unclean, a dirty, or a filthy, thing ]: (S, A, Msb, K:) and anything that is disliked, or hated, for its uncleanness, dirtiness, or filthiness; (Msb;) as also : (TA:) the former is similar in meaning to رَجِيعٌ [ dung of a man, or of a horse and the like, or of a wild beast]; (A 'Obeyd, TA;) and [also] is syn. with رَجِيعٌ . (TA.)

رَكِيسٌ ذ : see مَرْكُوسٌ , throughout: -A2- see also رِكْسٌ , in two places.