The ornamental design for a garmentbottom, as shown and described.
FIG. 1 is a front view in perspective of a garment bottom showing our new design;
FIG. 2 is a front view in elevation of the garment bottom of FIG. 1;
FIG. 3 is a rear view in elevation of the garment bottom of FIG. 1;
FIG. 4 is a right side view in elevation of the garment bottom of FIG. 1;
FIG. 5 is a left side view in elevation of the garment bottom of FIG. 1;
FIG. 6 is a top view in plan of the garment bottom of FIG. 1; and,
FIG. 7 is a bottom view in plan of the garment bottom of FIG. 1.
The broken line illustration in the drawings is not part of the claimed design. The stippling in FIGS. 1-7 indicates a perforated material (e.g., a perforated textile or mesh fabric).