Webster’s Revised Unabridged Dictionary · 1913
Decadence
De·ca′dence, De·ca′den·cy, n. [LL. decadentia; L. de- + cadere to fall: cf. F. décadence. See Decay.] A falling away; decay; deterioration; declension. "The old castle, where the family lived in their decadence." Sir W. Scott.