iacturam alicuius rei facere

Etymology:

• damnum (opp. lucrum) = loss, especially of worldly possessions; detrimentum (opp. emolumentum) = harm inflicted by others; fraus = deceitful injury; iactura (properly "throwing overboard") = the intentional sacrifice of something valuable in order either to avert injury or to gain some greater advantage. "Harmful" = inutilis, qui nocet, etc., not noxius, which is only used absolutely—e.g. homo noxius, the offender, evildoer.