noun
brought up in luxury; sheltered upbringing
Describes someone raised in a wealthy, privileged, or overprotected environment, often implying naivety or lack of real-world experience.
彼は殿様育ちだから、苦労を知らない。
He was brought up in luxury, so he doesn't know hardship.
Compound of 殿様 (tonosama, 'feudal lord') and 育ち (sodachi, 'upbringing'). The term evokes the image of a lord's child raised in a castle, shielded from ordinary life.