جدف

جَدَفٌ جدف A grave; a sepulchre; (S, Msb, K;) like جَدَثٌ; for the Arabs made ف and ث interchangeable: (Fr, S:) the former is of the dial. of Nejd; and the latter, of the dial. of Tihámeh: (Msb in art. جدث:) [accord. to some,] the former is formed from the latter by substitution [of ف for ث]: (S:) IJ argues that this is the case because the former has not أَجْدَافٌ for pl.: (TA:) but it has this pl., (Fr, S, R, TA,) used by Ru-beh. (R, TA.) -A2- Also, said in a trad. to be the beverage of the jinn, or genii, (S, TA,) Beverage that has not been covered [ at night according to a precept of the Prophet]: (Katádeh, S, K:) or of which the mouth of the skin containing it has not been tied [ at night ]: (K:) or a certain plant of El-Yemen, the eater of which needs not to drink after it: (S, K:) or a certain plant of El-Yemen, eaten by camels, which thereby become in no need of water: (M, TA:) or the froth, or floating particles, cast up by beverage; (El-'Otbee, Hr, K;) as though it were cut off from the beverage. (El-'Otbee, Hr, TA.)