ȘiRMa, A Herd of Camels Consisting of about Thirty, or from Twenty to Thirty, or from Thirty to Forty Five, or to Fifty, or from Ten to Fifty, or Forty, or from Ten to Some Number between that and Twenty, or less than One Hundred. A Detached Portion of Clouds.
-Lane’s Lexicon
Arabic has several forms of the plural noun- Dual, Sound, Broken, Collective, and Countable, the last of these giving me no end of mirth when watching KhairAllah and Rabih count the herd as it was run through their standing gantlet one by one every morning and each invariably coming to wildly different numbers. Or maybe they’d been only counting clouds, Hamlet-like (3.2.406).