the mind > mental capacity > lack of understanding > foolishness, folly > besottedness, infatuation > be foolish, dote [verb (intransitive)] (3)
intransitive. To be or become foolish, infatuated, or mad; to act the fool. Scottish in later use.
intransitive. With on, over, upon. To have foolish or excessive affection for; to dote upon. Obsolete.
intransitive. To become infatuated. With after, upon. Obsolete.