godan verb (-su), transitive verb
Transitive: to cause something to freeze or solidify. Less common than intransitive 凝る (こごる). Often used for liquids or soft substances.
寒さが湖の水を凝らした。
The cold froze the lake water.
godan verb (-su), transitive verb
Used with nouns like 心, 注意, 精神, 工夫 to mean focusing one's mind or efforts on something. Often appears in set phrases such as 心を凝らす or 工夫を凝らす.
彼は研究に心を凝らしている。
He is devoting himself to his research.
職人が細部に工夫を凝らした。
The craftsman put careful thought into the details.