Strong's #3624: kelach (pronounced keh'-lakh)

from an unused root meaning to be complete; maturity:--full (old) age.

Brown-Driver-Briggs Hebrew Lexicon:

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kelach

1) full strength, firm or rugged strength, vigour

Part of Speech: noun masculine

Relation: from an unused root meaning to be complete

Usage:

This word is used 2 times:

 

Job 5:26: "Thou shalt come to thy grave in a full age, like as a shock of corn cometh in in his season."
Job 30:2: "might the strength profit me, in whom old age was perished?"