Strong's Concordance

Original word: רִפְיוֹן
Transliteration: rippayon
Definition (short): limpness
Definition (full): slackness

NAS Exhaustive Concordance

Word Origin: from raphah
Definition: a sinking
NASB Translation: limpness (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From raphah; slackness -- feebleness.

see HEBREW raphah

KJV: At the noise of the stamping of the hoofs of his strong horses, at the rushing of his chariots, and at the rumbling of his wheels, the fathers shall not look back to their children for feebleness of hands;
NASB: "Because of the noise of the galloping hoofs of his stallions, The tumult of his chariots, and the rumbling of his wheels, The fathers have not turned back for their children, Because of the limpness of their hands,