quebranto

n. damage, injury, harm

v. break; shake; disrupt; tear; undermine

n. enfeeblement, act of making weak or feeble; weakness, feebleness, prostration, exhaustion

v. break, shatter, crack; prostrate, bring down; transgress, violate; subdue, win; debilitate, weaken, incapacitate, enfeeble; excel, surpass, do better than

= be in violation of, infringe (on/upon), go back on.
Ex: A 'self-help' approach, whereby libraries cooperate to boycott periodical publishers who are considered to be culpable, may also be in violation of antitrust legislation.
Ex: The Act undoubtedly has the potential to infringe gravely upon the civil liberties of UK citizens.
Ex: The Commission has downgraded university librarians in terms of both pay and academic status, thus going back on a right granted as early as 1960.
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* quebrantar el espíritu de Alguien = break + Posesivo + spirit.