ريد2 تَرْيِيدٌ, in agriculture, The raising, with the [implement called] مِجْنَب, the ridges that form the borders of streamlets for irrigation. (M.) رَيْدٌ A ledge of a mountain, (T, S, M, * A, K,) in [any of] the sides thereof, (A,) resembling a wall; (M;) i. q. حَيْدٌ: (S, M, A:) pl. [of pauc.]أَرْيَادٌ (M) and (of mult., M) رُيُودٌ. (T, S, M, A, K.) تَهْوِيدٌ عَلَى رُيُودٍ, (Meyd, TA,) meaning A resting, or sleeping, upon ledges of mountains, (Meyd,) is a prov., applied to him who enters upon an affair [dangerous or] insalutary in its result. (Meyd, TA.) رِيدٌ: see art. رود.A2:  Also An equal in age; syn. تِرْبٌ; for رِئْدٌ: so in a verse of Kutheiyir cited voce أُصْدَةٌ. (TA.) رِيحٌ رَادَةٌ: see what next follows: and see رَادٌ in art. رود.رِيحٌ رَيْدَةٌ A wind blowing gently; as also ↓ رَيْدَانَةٌ (T, S, M, A, K) and ↓ رَادَةٌ: (S, M, A, K:) or the first, as some say, that blows much. (M.) [See also رَادٌ in art. رود.]رِيدَةٌ: see رِيدٌ, in art. رود.رِيحٌ رَيْدَانَةٌ: see رَيْدَةٌ.الرِّيَادُ: see art. رود.أَرْيَدُ: see art. رود.