Biblical Word Etymology
The Etymology of “Canon”
The biblical word “Canon” traces back to Greek (kanōn (κανών)), where it meant “A straight rod or ruler; a rule, standard, or criterion; a list”. Across 3eras it evolved into the modern sense: “The list of biblical books recognized as genuine Scripture; a general rule or principle”.
How the Meaning Evolved
Ancient Greek
Greekkanōn (κανών)A straight rod or ruler; a rule, standard, or criterion; a list
Greek kanōn originally meant a measuring rod or ruler. Used metaphorically for a standard or rule. Church fathers used it for the authoritative list of biblical books (canon of scripture).
Medieval Latin / Church
LatincanonThe list of biblical books accepted as authoritative Scripture; an ecclesiastical rule or law
Latin canon from Greek kanōn. Church councils (Nicaea 325 AD, Carthage 397 AD) formally defined the biblical canon—which books were authoritative and divinely inspired.
Modern English
EnglishcanonThe list of biblical books recognized as genuine Scripture; a general rule or principle
From Latin and Greek. The biblical canon includes 66 books (Protestant) or 73 (Catholic/Orthodox). Also used generally for any authoritative list or standard.