nefastum
Could not find nefasta in Logeion dictionaries.
nefasta Noun: neuter accusative plural, Noun: neuter nominative plural, Noun: neuter vocative plural of nefastum
nefasta Adjective: feminine ablative singular, Adjective: feminine nominative singular, Adjective: neuter nominative plural, Adjective: feminine vocative singular, Adjective: neuter vocative plural, Adjective: neuter accusative plural of nefastus
nĕfāstum, (16) ī, n. de nefastus, pris substt , crime, impiété : Hor. O. 1, 35, 35 ; Plin. 4, 47.