, (Msb, TA,) verbal noun مُجَازَفَةٌ (S, Msb, K, TA) and جِزَافٌ, (S, TA,) He sold, or bought, a thing not knowing its measure nor its weight: (Msb:) or he conjectured in selling and buying. (K.)
2.
He acted in an easy, or a facile, manner, (Msb, TA,) in selling or buying. (Msb.)
3.
And hence, جازف بِنَفْسِهِ (tropical:) He perilled, endangered, jeoparded, hazarded, or risked, himself; as though he acted in an easy manner with himself. (TA.)