Based on its use in this context, the word doat most likely means... 1. resent 2. be revolted by 3. feel affection for 4. cheris
h "It puzzles me now to remember with what absurd sincerity I doated on this little toy, half fancying it alive and capable of sensation. (Jane Eyre; chapter 4, p. 17)"
The word "doat" means an intense admiration for something or someone. In this case, the text, when using the sentence "... I doated on this little toy .." is the same as saying "I felt a great affection for this toy."