"Sufferance" is the state of enduring or tolerating something, such as pain, hardship, or inconvenience, without complaining or resisting. Full definition
That is, private education exists by sufferance of the all-wise mind of the state educational... (edweek.org)
But this was during the last period when we really had three - party politics, and the first and second Labour governments existed on sufferance. (newstatesman.com)
It is a mistake to regard our society as identical with civilized mankind and all others as «natives» of territories that they inhabit by sufferance. (religion-online.org)