Strong's #7504: rapheh (pronounced raw-feh')

from 7503; slack (in body or mind):--weak. raphah, Raphah. See 7497, 7498. riphah. See 7383.

Brown-Driver-Briggs Hebrew Lexicon:

râpheh

1) slack

Part of Speech: adjective

Relation: from H7503

Usage:

This word is used 4 times:

 

Numbers 13:18: "therein, whether they be strong or weak, few or many;"
2 Samuel 17:2: "upon him while he is weary and weak handed, and will make him afraid: and all"
Job 4:3: "thou hast instructed many, and thou hast strengthened the weak hands."
Isaiah 35:3: "Strengthen ye the weak hands, and confirm the feeble knees."