Edward William Lane, An Arabic-English Lexicon, ط

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مُطْفِئُ الجَمْرِ ذ [The extinguisher of the live coals;] one of the [seven] days called أَيَّامُ العَجُوزِ; (S, O;) the fifth of those days; (K;) so in the M &c.: (TA:) or the fourth thereof: (O, K:) or the last thereof. (Har p. 295.) [Accord. to modern Egyptian almanacs, it is the fourth of those days on which the last of the three جَمَرَات becomes extinct: see جَمْرَةٌ: and see also عَجُوزٌ] ― -b2- مُطْفِئَةُ الرَّضْفِ (so in the M and O and L and in some copies of the K, in other copies of the K مُطْفِئُ, TA) A piece of fat which, when it falls upon the رَضْف [or heated stones], melts, and quenches them. (Lth, O, K.) And in the M and L, it is said to signify A lean sheep or goat: the Arabs, as is related by Lh, used to say, حَدَسَ لَهُمْ بِمُطْفِئَةِ الرَّضْفِ (TA) i. e. He slaughtered for them a lean sheep or goat, which extinguished the fire and did not become thoroughly cooked: (M and L and K in art. حدس:) or a fat sheep or goat, (AO and T, TA in that art.,) which quenched the رَضْف by its fat. (T, TA ibid. [See also دَمَغَ.]) ― -b3- Also A serpent, the poison of which, as it passes by the رَضْف, extinguishes their fire: (O, K:) in a verse of El-Kumeyt, [for the sake of the metre,] the former word is [altered to] ↓ مُطَفِّئَة . (O.) ― -b4- And (tropical:) A calamity, or misfortune: (O, K, TA:) said by AO to mean originally such as has made one to forget that which was before it, and extinguished its heat. (O, TA.)