As nouns the difference between ordinarity and ordinality
is that ordinarity is ordinariness: the property of being ordinary while ordinality is the state or condition of being ordinal.
ordinarity
English
Noun
(en-noun)
(rare) Ordinariness: the property of being ordinary.
Usage notes
* This form is rare in general, especially in comparison to ordinariness. One context in which it is slightly less rare is in mathematics, in reference to ordinary and near-ordinary Galois representations and deformations; even there, however, the form is far more common. ordinality
English
Noun
The state or condition of being ordinal.