腰を据える
1
to settle down (and deal with something);to concentrate all one's energy (on something)
彼はその仕事に腰を据えている。
He has settled down to the job.
2
to settle oneself (in a place);to settle down (somewhere);to settle in
3
to take a solid stance;to lower one's center of gravity (centre)
Other forms
腰をすえる 【こしをすえる】