The only free and comprehensive online etymological dictionary of the Spanish language
decisión f. (Noun) "decision"
16th cent. From Latin decisionem, accusative of decisio 'id.' From the verb decidere "to decide," but commonly "to cut off" (see decidir).
Indo-European
Romance
Asturian decisión, Portuguese decisão, Galician decisión, Catalan decisió, French décision, Italian deicisione, Romanian decizie