the word 'taxed' originates from the latin verb 'taxare', which meant to handle, touch sharply, or assess. this latin term is a frequentative form of 'tangere' (to touch), which traces back to the proto-indo-european root tag- (to touch, handle). the sense evolved in medieval latin and old french ('taxer') to specifically denote assessing or imposing a charge. the modern english verb 'tax', meaning to impose a financial charge, absorbed this meaning, and the addition of the old english past tense suffix '-ed' creates the form 'taxed', indicating the completed action of imposing such a levy or, figuratively, putting a strain on something.

Structure: tax (to assess) + ed (past tense suffix) tax (from latin 'taxare', meaning to censure, charge, compute) + ed (from old english '-ede', '-ode', '-adon', a suffix forming the past tense of weak verbs)