く	だ
砕

け

る

Ichidan verb, intransitive verb

1. to break (into pieces), to be broken, to be smashed.
2. to collapse, to crumble, to decline, to cool (e.g. enthusiasm), to dampen (e.g. one's will to fight).
3. to become less formal, to throw off reserve, to become affable.
4. to become easy to understand (e.g. a story).
5. to be worried.