Entries on رسب in 14 Arabic dictionaries by the authors Habib Anthony Salmone, An Advanced Learner's Arabic-English Dictionary, Arabic-English Lexicon by Edward William Lane, Al-Fayyūmī, Al-Miṣbāḥ al-Munīr fī Gharīb al-Sharḥ al-Kabīr, and 11 more
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رسب
رَسَُبَ(n. ac. رُسُوْب)
a. Sank, settled; was sunken, hollow (eye).
رَسَب
رُسَب
9a. Sharp, cutting sword.
رُسُوْبa. Sediment, dregs.
b. see 4