numberness en · NOUN
Etymology
From number + -ness.
Meanings
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(uncountable) The quality of being a number.
Richard Spuler, From Here to There […] free-fallers falling less than freely into (predetermined?) places, confirming the grandness of grand, the heaviness of heavy, the truthfulness of lies, the numberness of numbers.
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(uncountable) Competence in working with numbers and arithmetic; numeracy.
Fluent reading and fluency in numberness are analogous.
2014, Steve Chinn, The Routledge International Handbook of Dyscalculia and Mathematical Learning Difficulties, page 280:
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(uncountable) Cardinality.
It helps children to see that the numberness of a "set" can be represented by a numeral.
1966, Saturday Review, volume 49, page 73: