قراح

قَرَاح • (qarāḥ) (common plural أَقْرِحَة (ʔaqriḥa))

1. (archaic) clear, limpid
   • a. 1165, ابن التلميذ , edited by Oliver Kahl, The Dispensatory of Ibn At-Tilmīḏ الأقراباذين الكبير (Islamic Philosophy, Theology and Science. Texts and Studies; 70), Leiden: Brill, published 2007, →ISBN, page 139 Nr. 301:

     غسل الزيت
     يؤخذ من الزيت أصفاه مقدار ما يراد فيجعل في طنجير ويصب عليه قليل ماء قراح وتلقى فيه تمرتان ومقدار كف سويق مصرور في خرقة كتان ويغلى غليانا رفيقا بنار لينة حتى يذهب الماء ويبقى الزيت صافيا ثم يخرج عنه السويق والتمر ويبرد الزيت ويستعمل عند الحاجة

     How to wash olive oil.
     Take as much as you like from the purest olive oil, cast it in a cauldron, pour on it a bit of limpid water, throw into it two dates and a handful of flour tied up in a cloth of linen, and boil (all this) gently on a low flame until the water vanishes and the oil remains in a clear state; take out the flour and the dates, let the oil cool off, and use it as required.

قَرَاح • (qarāḥ) m (plural أَقْرِحَة (ʔaqriḥa))

1. (archaic) land exposed to the sun, a tract of land not concealed by any trees and where water is not retained but flows off

   Alternative form: قِرْوَاح (qirwāḥ)

• Brockelmann, Carl (1928) Lexicon Syriacum (in Latin), 2nd edition, Halle: Max Niemeyer, published 1995, page 693b
• Lane, Edward William (1863) “قراح”, in Arabic-English Lexicon‎, London: Williams & Norgate, page 2511b