Reference for Bava Batra 347:13
ההוא ערבא דיתמי דפרעיה למלוה מקמי דלודעינהו ליתמי
I [has the force of] acceptance.<span class="x" onmousemove="('comment',' The expressions of 'lending' and 'giving', are of no consequence where the term denoting 'guarantee' or 'acceptance' was specifically mentioned. ');"><sup>12</sup></span>
Jastrow
Ask RabbiBookmarkShareCopy