伊達
だて elegance; dandyism
Why it means this
Ateji; style, dandyism, showy display for its own sake (伊達メガネ, non-prescription glasses worn for looks; 伊達の薄着; 伊達や酔狂でやっているのではない). Also the Date clan of Sendai.
Breakdown
Each character links to its full entry — origin story, stroke order, and readings.