acknowledged
constituted
established
accepted
admitted
affirmed
allowed
appreciated
apprehended
approved
ascertained
authenticated
avowed
being done
certified
comme il faut
comprehended
conceded
conceived
confessed
confirmed
conformable
conventional
correct
countersigned
customary
de rigueur
decent
decorous
discerned
down pat
endorsed
fixed
folk
formal
granted
grasped
hallowed
handed down
heroic
hoary
immemorial
inveterate
known
legendary
long-established
long-standing
meet
mythological
notarized
of long standing
misrecognized
unrecognized