Rashi on Genesis 4:11/רש"י על בראשית ד׳:י״א

1ארור אתה מן האדמה CURSED BE THOU FROM THE GROUND or, MORE THAN THE GROUND — More than the ground has already been cursed on account of its sin (cf. Rashi on Genesis 1:11): in this, too, it has again sinned

2אשר פצתה את פיה לקחת את דמי אחיך IN THAT IT HATH OPENED ITS MOUTH TO TAKE THY BROTHER’S BLOOD: therefore do I impose upon it an additional curse regarding you—“it shall not henceforth yield unto thee its strength”.