over·​tax | \ˌō-vər-ˈtaks \
overtaxed; overtaxing

Definition of overtax 

transitive verb

1 : to tax (someone or something) too heavily or beyond what is due revenues raised through overtaxing the middle class

2 : to lay too heavy a burden or demand upon (someone or something) exercises that overtax the muscles overtaxing my patience A fancy terminal with enough gates for all the planes, a work force that is alternately overtaxed and underemployed, and a high-tech baggage system all create high fixed costs.— Marc Levinson et al.

Other Words from overtax

overtaxation \ ˌō-​vər-​tak-​ˈsā-​shən \ noun
Homelessness is worse here than anywhere in the country. The cost of living is out of control. Overtaxation is rampant. Infrastructure is crumbling. — Eric Ryan

First Known Use of overtax

1607 , in the meaning defined at sense 1

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The first known use of overtax was in 1607

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