THESAURUS
overtax
bear hard upon, bleed, bleed white, burden, burthen, busy, carry too far, charge, clip, cumber, drive, encumber, exaggerate, exhaust, exploit, fag, fleece, freight, go overboard, go to extremes, go too far, gouge, hamper, handicap, haul, heave, hold up, keep busy, know no bounds, lade, load, oppress, overact, overburden, overcarry, overcharge, overdevelop, overdo, overdrive, overelaborate, overemphasize, overexercise, overexert, overexpend, overextend, overindulge, overlabor, overlade, overload, overplay, overprice, overreact, overspend, overstrain, overstress, overstudy, overtask, overtrain, overuse, overweigh, overweight, overwork, pass all bounds, press, press hard upon, profiteer, protest too much, pull, rack, rest hard upon, saddle, screw, skin, soak, stick, sting, strain, strain every nerve, stress, stretch, surcharge, sweat, sweat blood, swindle, task, tax, tense, tug, victimize, weigh heavy on, weigh on, weigh upon, work
ROGET THESAURUS
overtax
Misuse
VB
misuse, misemploy, misapply, misappropriate, desecrate, abuse, profane, prostitute: waste, overtask,
overtax, overwork: squander, cut blocks with a razor, employ a steam engine to crack a nut, catch at a straw.
Fatigue
VB
be fatigued, yawn, droop, sink, flag, lose breath, lose wind, gasp, pant, puff, blow, drop, swoon, faint, succumb, fatigue, tire, weary, irk, flag, jade, harass, exhaust, knock up, wear out, prostrate, tax, task, strain, overtask, overwork, overburden,
overtax, overstrain.