思い切る

Etymology
From.

Verb

 * 1) resign oneself to, give up
 * 2) resolve, determine

Derived terms

 * : with all one's strength, with all one's heart, resignation, resolution
 * : bravely, drastic
 * : resolutely, boldly, daringly
 * : dissuade, change someone's mind, make someone give up the idea of