The quality or state of being collateral; the condition of being secondary, indirect, or serving as a backup security.
From Medieval Latin 'collateralis' (side by side) with English suffix '-ness' (quality of). A rarely-used term that describes the abstract quality of having collateral status.
This word is so specialized that most English speakers have never encountered it—it's the kind of term that might appear in a 200-year-old legal document but sounds almost invented.
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