dotage

n. [ From Dote, v. i. ] 1. Feebleness or imbecility of understanding or mind, particularly in old age; the childishness of old age; senility; as, a venerable man, now in his dotage. [ 1913 Webster ]

Capable of distinguishing between the infancy and the dotage of Greek literature. Macaulay. [ 1913 Webster ]

2. Foolish utterance; drivel. [ 1913 Webster ]

The sapless dotages of old Paris and Salamanca. Milton. [ 1913 Webster ]

3. Excessive fondness; weak and foolish affection. [ 1913 Webster ]

The dotage of the nation on presbytery. Bp. Burnet. [ 1913 Webster ]