رخ

رُخٌّ ذ A certain soft, flaccid, or fragile, plant; (AHn, S, K;) as also ↓ رَخَاخٌ, with fet-h, (mentioned by ISd,) or ↓ رِخَاخٌ. (So in the JK.) -A2- Also A certain great bird, that carries off the كَرْكَدَّن [or rhinoceros ]. (K. [See note 22 to ch. xx. of my translation of the “ Thousand and One Nights. ” The word is of Persian origin, arabicized; as it is said to be by Lth in the sense next following.]) ― -b2- And hence, as being likened thereto, (TA,) One of the pieces with which the game of chess is played; [called by us the rook, castle, and tower: ] pl. رِخَخَةٌ, (K,) or رِخَاخٌ (JK, A,) or both. (TA.)