凝る
1
to become stiff (of muscles)
2
to get absorbed in;to develop a passion for;to devote oneself to;to become obsessed with;to get hooked on
最近はどんな物に凝っているの？
What are you into these days?
3
to be elaborate;to be intricate;to be exquisite;to be particular about;to pay great attention to
彼女は服に凝っている。
She is particular about her dress.