The ornamental design for a portion of a laundryappliance, as shown and described.
FIG. 1 is a front perspective view of a portion of a laundry appliance showing our new design; and,
FIG. 2 is a front view thereof.
The broken line(s) which define the bounds of the claimed design forms no part thereof. The broken line showing of unshaded portions of the laundry appliance is included for the purpose of illustrating environmental matter and forms no part of the claimed design.