Definition of dotes:
(v) :
(intransitive, stative, usually with on) To be weakly or foolishly fond of somebody.
(n) :
(countable, Ireland) A darling, a cutie.
(v) :
(intransitive, archaic) To act in a foolish manner; to be senile.
(n) :
(countable, obsolete) An imbecile; a dotard.
(v) :
(intransitive, of trees, rare or obsolete) To rot, decay.
(n) :
(uncountable, rare) Decay in a tree.