An Etymological Dictionary of Astronomy and Astrophysics

1. Of, pertaining to, or constituting a name or names, a noun or nouns.
   

2. Describing a value quoted for commodity, expectation, or its current estimate, as opposed to the actual value. → nominal value.
   

3. Within acceptable limits; as expected.
   

4. a) Grammar: Relating to a noun or to any word or word group that functions as a noun.
   b) A word which differs from a noun but functions as one.

Etymology (EN): From L. nominalis “pertaining to a name or names,” from nomen “name,” cognate with Pers. nâm, as below.

Etymology (PE): Nâmenâl, from nâmen, from O.Pers./Av.nâman-, → name, + suffix -al.