weal
Concise Oxford English Dictionary © 2008 Oxford University Press:
weal1 /wiːl/ (also chiefly Medicine wheal)
▶noun a red, swollen mark left on flesh by a blow or pressure.
■ Medicine a temporarily raised and reddened area of skin, usually accompanied by itching.
▶verb mark with a weal.Concise Oxford English Dictionary © 2008 Oxford University Press:
weal2 /wiːl/
▶noun formal that which is best for someone or something: guardians of the public weal.
'weal' also found in these Oxford entries:

