intercede
Concise Oxford English Dictionary © 2008 Oxford University Press:
intercede /ˌɪntəˈsiːd/
▶verb intervene on behalf of another.
– derivatives
interceder noun.
interceder noun.
– origin C16: from Fr. intercéder or L. intercedere ‘intervene’, from inter- ‘between’ + cedere ‘go’.
'intercede' also found in these Oxford entries:

