جِدٌّ

[according to some a verbal noun, but according to others a simple subst., (see جَدَّ,)] Seriousness, or earnestness, opposite of هَزْلٌ, (S, A, Msb, K,) in speech. (Msb.) Hence, ثَلَاثٌ جِدُّهُنَّ جِدٌّ وَهَزْلُهُنَّ جِدٌّ [There are three things in relation to which what is serious is serious and what is jesting is serious]: a saying of Mohammad, whereby he forbade a man's divorcing and emancipating and marrying and then retracting, saying “ I was jesting; ” as was customary in the time of paganism. (Msb.) أَجِدَّكَ and أَجَدَّكَ signify the same; (S;) but the former is the more chaste; (TA;) جِدّ and جَدّ being thus used only as prefixed nouns: (S, K:) As says that the meaning is, أَبِجِدٍّ مِنْكَ هٰذَا [Does this proceed from thee in seriousness, or in earnest?]; and that جِدّ is put in the accusative case because of the rejection of the [preposition] ب: AA says that the meaning is, مَا لَكَ أَجِدًّا مِنْكَ [What aileth thee? Doth it proceed from thee in seriousness, or in earnest?]; and that جدّ is put in the accusative case as a verbal noun: Th says that the phrase as it occurs in poetry is أَجِدَّكَ, with kesr: (S:) but when it occurs with وَ [in the place of أَ, or with أَ in the sense of وَ, as a particle denoting an oath,] it is وَجَدِّكَ [or أَجَدِّكَ], with fet-h: (S, K:) yon say, وَجَدِّكَ لَا تَفْعَلْ, (K, in the CK وَجَدَّكَ,) meaning, By thy grandfather, do not [such a thing]: or by thy fortune, or good fortune, do not: (TA:) also, when you say, أَجِدَّكَ لَا تَفْعَلْ, [or أَجِدِّكَ, for أَ (q. v.) is substituted for a particle of swearing, as in أَللّٰهِ لَأَفْعَلَنَّ,] the meaning is, I adjure thee by thy truth, (Lth, K,) and by thy seriousness, or earnestness, (Lth, TA,) do not: and when you say, لَا تَفْعَلْ أَجَدَّكَ, [or أَجَدِّكَ,] the meaning is, I adjure thee by thy fortune, or good fortune, do not: (Lth, K:) Aboo- 'Alee Esh-Shalowbeenee asserts that it implies the signification of an oath. (MF.) In the phrase اجدّك لا تَفْعَلُ, AAF says, we may consider لا تفعل as put in the place of a denotative of state; or the phrase may be originally اجدّك أَنْ لَا تَفْعَلَ, ان being suppressed, and its government annulled: [therefore it may be rendered, in the former case, Is it with seriousness on thy part, thou doing such a thing? and in the latter case, Is it with seriousness on thy part that thou will not do such a thing? i. e. dost thou mean seriously that thou will not do it? or in this case, اجدّك may be used as a form of adjuration in one of the senses explained above, and لَا تَفْعَلُ may mean, that thou do not such a thing; or اجدّك may mean وَجَدَّكَ, (explained above, and so in the three exs. below,) and لَا تَفْعَلُ, thou wilt not do it:] and, as AHei says, there is here a nice point, which is this; that the noun [meaning the pronoun] to which جدّ is prefixed should agree in person with the verb which follows it; so that one should say, اجدِّى لَا أُكْرِمُكَ, and اجدّكَ لَا تَفْعَلُ, and اجدّهُ لَا يَزُورُنَا; because جدّ is a verbal noun corroborating the proposition that follows it. (MF.)

Also, [and in this case, likewise, according to some a verbal noun, but according to others a simple subst., (see, again, جَدَّ,)] A striving, labour, or toil; exertion of one's self, or of one's power or efforts or endeavours or ability; vigorousness, strenuousness, laboriousness, diligence, studiousness, sedulousness, earnestness, or energy; painstaking, or extraordinary painstaking; (S, L, Msb, K;) in affairs, (S,) or in an affair. (Msb, K.) Hence, جِدًّا [meaning In a great, or an extraordinary, degree; greatly, much, exceedingly, or extraordinarily; very; very greatly, or very much; extremely]; as in the phrase, (Msb,) فُلَانٌ مُحْسِنٌ جِدًّا [Such a one is beneficent in a great, or an extraordinary, degree; very, exceedingly, or extremely, beneficent]: you should not say جَدًّا. (S, Msb. * [In my copy of the Msb, it is محسن جدّا بالفتح: but the context shows that there is an omission here, and that, after جدّا, we should read, as in the S, وَلَا تَقُلْ جَدًّا.]) جِدًّا [in a phrase of this kind] is put in the accusative case as a verbal noun [of which the verb is understood; so that, in the example given above, the proper meaning is, يَجِدُّ فِى الإِحْسَانِ جِدًّا striving in beneficence with a great striving]; because it is not from the same root as the preceding word, nor is it identical with it [in meaning]. (L.) You say also, فِى هٰذَا خَطَرٌ جِدَّ عَظِيمٍ, meaning عَظِيمٌ جِدًّا [(assumed tropical:) In this is a very, or an extremely, great danger, or risk]. (S.) And هٰذا العَالِمُ جِدَّ العَالِمِ This is the learned man, the extremely [or the very] learned man. (L.) And هٰذَا عَالِمٌ جِدَّ عَالِمٍ This is a learned man, an extremely [or a very] learned man. (L, * K.)

Also (tropical:) Haste. (S, L, K, TA.) So in the phrase فُلَانٌ عَلَى جِدِّ أَمْرٍ (tropical:) Such a one is in haste in an affair. (S, L, TA.)

Also Executed seriously, or in earnest, [in which there is no jesting,] and excessive; synonym مُحَقَّقٌ مُبَالَغٌ فِيهِ [meaning مُحَقَّقٌ فِيهِ وَمُبَالَغٌ فِيهِ; (see جَدَّ فِى أَمْرِهِ;) جِدٌّ thus used as an epithet having an intensive signification because it is originally a verbal noun, or as some say, a simple subst.]: (L, K:) applied in this sense to a punishment: (L:) and also applied to a pace. (K in article نص.)