Delinquency, n.; pl. Delinquencies.
Etymology: [L. delinquentia, fr. delinquens.]
Failure or omission of duty; a fault; a misdeed; an offense; a misdemeanor; a crime. The delinquencies of the little commonwealth would be represented in the most glaring colors. Motley.
Shades of meaning
Fernald has no entry of its own for delinquency; he lists it under sin.
He lists it without comment; the entries above explain its neighbors.