Surely you want to be a reduced form by syncopation of "hemocataclismo", which is there but etymologically would relate to a "great blood bath", as in a cruel war; because it is only named a splash or wet blood. The origin is clearly Greek, x3B1; x3B9; x3BC; x3B1; (haima, "blood") x3BA; x3B1; x3C4; x3B1; x3BA; x3BB; x3B9; x3C3; x3BC; x3BF; x3C2; (kataklysmos, "flood"). See cataclysm.
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