BT Sot 19b(39) :הא דהדרא בה מחמת בריאות^א^‏ : she retracts (from drinking the potion) because of (her) willpower
See the entire entry for bāryū, bāryūṯā n.f. strength

BT Sot 19b(39) :מחמת רתיתא‏ : because of trembling
See the entire entry for mḥmt prep./con. because

BT Sot 19b(39) :דהדרא בה מחמת רתיתא‏ : she retracted (from drinking the potion) because of trembling
See the entire entry for rṯēṯ, rṯēṯā n.f./m. trembling