Isaiah 35:3

חָזַק (cha.zaq) : strengthen/support/encourage 1) to strengthen, prevail, harden, be strong, become strong, be courageous, be firm, grow firm, be resolute, be sore 1a) (Qal) 1a1) to be strong, grow strong 1a1a) to prevail, prevail upon 1a1b) to be firm, be caught fast, be secure 1a1c) to press, be urgent 1a1d) to grow stout, grow rigid, grow hard (bad sense) 1a1e) to be severe, be grievous 1a2) to strengthen 1b) (Piel) 1b1) to make strong 1b2) to restore to strength, give strength 1b3) to strengthen, sustain, encourage 1b4) to make strong, make bold, encourage 1b5) to make firm 1b6) to make rigid, make hard …

יָד (yad) : hand/arm[anatomy] 1) hand 1a) hand (of man) 1b) strength, power (fig.) 1c) side (of land), part, portion (metaph.) (fig.) 1d) (various special, technical senses) 1d1) sign, monument 1d2) part, fractional part, share 1d3) time, repetition 1d4) axle-trees, axle 1d5) stays, support (for laver) 1d6) tenons (in tabernacle) 1d7) a phallus, a hand (meaning unsure) 1d8) wrists

רָפֶה (ra.pheh) slack

בֶּ֫רֶךְ (be.rekh) 1) knee 2) weak from fear (fig.) Aramaic equivalent: be.rekh (בְּרַךְ "knee" H1291)

כָּשַׁל (ka.shal) 1) to stumble, stagger, totter 1a) (Qal) 1a1) to stumble 1a2) to totter 1b) (Niphal) 1b1) to stumble 1b2) to be tottering, be feeble 1c) (Hiphil) 1c1) to cause to stumble, bring injury or ruin to, overthrow 1c2) to make feeble, make weak 1d) (Hophal) to be made to stumble 1e) (Piel) bereave

אָמֵץ (a.mats) 1) to be strong, alert, courageous, brave, stout, bold, solid, hard 1a) (Qal) to be strong, brave, bold 1b) (Piel) to strengthen, secure (for oneself), harden (heart), make firm, make obstinate, assure 1c) (Hithpael) to be determined, to make oneself alert, strengthen oneself, confirm oneself, persist in, prove superior to 1d) (Hiphil) to exhibit strength, be strong, feel strong