فَجْرَةُ

is a proper name, [i. e. an attributive proper name,] imperfectly decl., like بَرَّةُ; [and signifies the same as الفَجْرَةُ and فَجَارِ;] and ↓ فَجَارِ is altered from فَجْرَةٌ, (IJ, TA,) or from الفَجْرَةُ, (Sb, TA,) and is a subst. in the sense of الفُجُورُ [i. e. Vice, immorality, wickedness, unrighteousness, sin, or transgression, &c., (see 1,)] (S,) or a name for الفَجْرَةُ [which signifies the same], (O,) like قَطَامِ, (S, O,) determinate, (S,) occurring in a verse of En-Nábighah cited in the first paragraph of article حمل. (S, O.) One says, رَكِبَ فُلَانٌ فَجْرَةَ, (K, * TA, [in the CK فَجَرَةَ,]) and ↓ فَجَارِ, (TA,) Such a one lied; (K, TA;) and acted vitiously &c. (فَجَرَ). (TA.) And حَلَفَ فُلَانٌ عَلَى فَجْرَةَ, and اِشْتَمَلَ عَلَى فَجْرَةَ, [in the L على فَجْرِهِ, in both instances, but the former is the right reading,] Such a one commited a foul deed, by swearing falsely, [relating to the former phrase,] or by adultery, or fornication, or lying. (TA.)