כְּחִישׁוּתָא, (preced.) reduction, weakness, leanness. Targ. Koh. XII, 5.—Yeb. 79ᵇ כ׳ דאתחילא ביה it was weakness that befell him (but no organic defect). Bekh. 45ᵇ כ׳ אתחלא וכ׳ it is a weakness of the right hand, v. בְּרִיאוּתָא. B. Bath. 155ᵇ; a. e.