止まる

also 留まる

1. godan verb, intransitive to stop (moving); to come to a stop
2. to stop (doing, working, being supplied); to come to a halt; to cease; to be stopped; to be suspended
3. to alight; to perch on

とどまる also 留まる

1. godan verb, intransitive, usually in kana to remain; to abide; to stay (in the one place)
2. usually in kana to be limited to; to be confined to; to only account for

やまる

1. godan verb, intransitive, colloquial, rare to cease; to stop; to be over