raphah (Hebrew #7503)
to slacken (in many applications, literal or figurative)
KJV usage: abate, cease, consume, draw (toward evening), fail, (be) faint, be (wax) feeble, forsake, idle, leave, let alone (go, down), (be) slack, stay, be still, be slothful, (be) weak(-en). See 7495.
Pronounce: raw-faw'
Origin: a primitive root