Romans 6:6

6:6 We know that our old man was crucified with him so that the body of sin would no longer dominate us, so that we would no longer be enslaved to sin.

Colossians 3:9

3:9 Do not lie to one another since you have put off the old man with its practices

tn Grk “knowing this, that.” Because of the length and complexity of the Greek sentence, a new sentence was started here in the translation.

tn Grk “may be rendered ineffective, inoperative,” or possibly “may be destroyed.” The term καταργέω (katargew) has various nuances. In Rom 7:2 the wife whose husband has died is freed from the law (i.e., the law of marriage no longer has any power over her, in spite of what she may feel). A similar point seems to be made here (note v. 7).