رُخٌّ

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.])

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:] plural رِخَخَةٌ, (K,) or رِخَاخٌ (JK, A,) or both. (TA.)