عُبٌّ

i. q. رُدْنٌ, (O, K,) which means The base (أَصْل) of the sleeve: (S and K in article ردن:) or the fore part of the sleeve of the shirt: (M in that article:) or the lower part thereof: (M in that article, and Har pp. 149 and 390:) or the sleeve altogether: (M in that article:) but, as MF says, it is a vulgar word. (TA.)