Isa. 40:29 KJV (With Strong’s)

Hec giveth
nathan (Hebrew #5414)
to give, used with greatest latitude of application (put, make, etc.)
KJV usage: add, apply, appoint, ascribe, assign, X avenge, X be ((healed)), bestow, bring (forth, hither), cast, cause, charge, come, commit, consider, count, + cry, deliver (up), direct, distribute, do, X doubtless, X without fail, fasten, frame, X get, give (forth, over, up), grant, hang (up), X have, X indeed, lay (unto charge, up), (give) leave, lend, let (out), + lie, lift up, make, + O that, occupy, offer, ordain, pay, perform, place, pour, print, X pull , put (forth), recompense, render, requite, restore, send (out), set (forth), shew, shoot forth (up), + sing, + slander, strike, (sub-)mit, suffer, X surely, X take, thrust, trade, turn, utter, + weep, + willingly, + withdraw, + would (to) God, yield.
Pronounce: naw-than'
Origin: a primitive root
koach (Hebrew #3581)
from an unused root meaning to be firm; vigor, literally (force, in a good or a bad sense) or figuratively (capacity, means, produce); also (from its hardiness) a large lizard
KJV usage: ability, able, chameleon, force, fruits, might, power(-ful), strength, substance, wealth.
Pronounce: ko'-akh
Origin: or (Dan. 11:6) kowach {ko'-akh}
to the faint
ya`ph (Hebrew #3287)
fatigued; figuratively, exhausted
KJV usage: faint, weary.
Pronounce: yaw-afe';
Origin: from 3286
; and to them that have no might
'own (Hebrew #202)
ability, power, (figuratively) wealth
KJV usage: force, goods, might, strength, substance.
Pronounce: one
Origin: probably from the same as 205 (in the sense of effort, but successful)
he increaseth
rabah (Hebrew #7235)
to increase (in whatever respect)
KJV usage: (bring in) abundance (X -antly), + archer (by mistake for 7232), be in authority, bring up, X continue, enlarge, excel, exceeding(-ly), be full of, (be, make) great(-er, -ly, X -ness), grow up, heap, increase, be long, (be, give, have, make, use) many (a time), (any, be, give, give the, have) more (in number), (ask, be, be so, gather, over, take, yield) much (greater, more), (make to) multiply, nourish, plenty(-eous), X process (of time), sore, store, thoroughly, very.
Pronounce: raw-baw'
Origin: a primitive root
`otsmah (Hebrew #6109)
powerfulness; by extension, numerousness
KJV usage: abundance, strength.
Pronounce: ots-maw'
Origin: feminine of 6108

Cross References

Isa. 41:10• 10--Fear not, for I am with thee; be not dismayed, for I am thy God: I will strengthen thee, yea, I will help thee, yea, I will uphold thee with the right hand of my righteousness. (Isa. 41:10)
Gen. 49:24• 24But his bow abideth firm, And the arms of his hands are supple By the hands of the Mighty One of Jacob. From thence is the shepherd, the stone of Israel: (Gen. 49:24)
Deut. 33:25• 25Iron and brass shall be thy bolts; And thy rest as thy days. (Deut. 33:25)
Psa. 29:11• 11Jehovah will give strength unto his people; Jehovah will bless his people with peace. (Psa. 29:11)
Zech. 10:12• 12And I will strengthen them in Jehovah; and they shall walk in his name, saith Jehovah. (Zech. 10:12)
2 Cor. 12:9‑10• 9And he said to me, My grace suffices thee; for my power is perfected in weakness. Most gladly therefore will I rather boast in my weaknesses, that the power of the Christ may dwell upon me.
10Wherefore I take pleasure in weaknesses, in insults, in necessities, in persecutions, in straits, for Christ: for when I am weak, then I am powerful.
(2 Cor. 12:9‑10)
Phil. 4:13• 13I have strength for all things in him that gives me power. (Phil. 4:13)
Col. 1:11• 11strengthened with all power according to the might of his glory unto all endurance and longsuffering with joy; (Col. 1:11)
Heb. 11:34• 34quenched the power of fire, escaped the edge of the sword, became strong out of weakness, became mighty in war, made the armies of strangers give way. (Heb. 11:34)

J. N. Darby Translation

He giveth power to the faint; and to him that hath no might he increaseth strength.