رعو1 رَعَا, aor. ـْ (S, TA,) [He refrained, forbore, or abstained: or, used elliptically,] he refrained, forbore, or abstained, (S, TA,) from  things, or affairs, (S,) or from ignorance, and reverted therefrom in a good manner; (TA;) [as also ↓ اِرْعَوَى; (K;) [for] رَعْوٌ and رِعْوٌ and رُعُوٌ (K) and رَعْوَةٌ and رِعْوَةٌ (S, K) and رُعْوَةٌ (K) are syn. with ↓ اِرْعِوَآءٌ (S, K) meaning the refraining, forbearing, or abstaining, from ignorance, and reverting therefrom in a good manner, (K, TA,) [all app. as inf. ns.,] and so are ↓ رَعُوَى (S, K) and ↓ رُعْوَى (K) and ↓ رُعْيَا, (S, K,) [in the last of which the radical و is changed into ى as it is in دُنْيَا and عُلْيَا and قُصْيَا,] but these three, as some say, (TA,) or the first and last of these three, (S,) are simple substs.: (S, TA:) you say, فُلَانٌ حَسَنُ الرَّعْوَةِ and الرِّعْوَةِ and ↓ الرَّعْوَى [&c., meaning Such a one is good in respect of refraining, &c.]. (S.) ↓ اِرْعَوَى is of the measure اِفْعَلَلَ [ for اِفْعَلَّ]; the two infirm letters not being incorporated, one into the other, because the ى is quiescent: (S: [see also Ham p. 220:]) you say, عَنِ القَبِيحِ ↓ ارعوى, (S, Msb,) or عن الجَهْلِ, (Ham ubi suprà,) He refrained, forbore, or abstained, from bad, or foul, conduct, (S, Msb,) or from ignorance, and reverted therefrom: (Ham:) and ↓ ارعوى [alone] signifies He refrained, forbore, or abstained; and he repented: (Har p. 240:) [see also an ex. in a verse cited voce أَلَا:] accord. to AHei, it is quasi-pass. of رَعَوْتُهُ. (TA.) A2:  [Hence, رَعَوْتُهُ app. signifies I caused him to refrain, forbear, or abstain, &c.]9 اِرْعَوَى, inf. n. اِرْعِوَآءٌ: see the preceding paragraph, in five places.رَعْوَى and رُعْوَى: see 1, in three places: b2: and see also art. رعى.رُعْيَا: see 1: b2:  and see also art. رعى.رَعَاوَى and رُعَاوَى: see art. رعى.رَعَاوِيَّةٌ (in some copies of the K رَعَاوِيَة, without teshdeed); and رُعَاوِيَّةٌ: see art. رعى.أَرْعُوَّةٌ: see art. رعى.أَرْعَاوِيَّةٌ: see art. رعى.