Excessive fondness or adoration; doting on someone (often a child), sometimes to the point of spoiling them.
祖父は孫を溺愛していて、何でも買い与えてしまう。
The grandfather dotes on his grandchild and buys them anything they want.
親が子どもを溺愛しすぎると、わがままになりやすい。
If parents dote on their children too much, they tend to become spoiled.
彼女は犬を溺愛しており、毎日写真を撮っている。
She adores her dog and takes pictures of it every day.