creed
/kriːd/
noun
1 A system of religious belief; a faith.
1.1 often "the Creed" - A formal statement of Christian beliefs, especially the Apostles' Creed or the Nicene Creed.
1.2 A set of beliefs or aims which guide someone's actions.
Origin
Old English, from Latin credo.
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He thought she was pretty.
She thought he was witty.
But families with no shared creed.
An edict: "No marriage" was decreed.