An Etymological Dictionary of Astronomy and Astrophysics

1. A symbol, group of symbols, or word used to express a number. For any number there is an infinite number of numeral expressions. For example, the number two can be written as 2, II, binary 10, 4/2, 18/8, etc.
   
2. Of, pertaining to, or consisting of numbers or numerals.

Etymology (EN): From L.L. numeralis “of, or belonging to number,” → number + → -al

Etymology (PE): Šomârâl, from šomâr, → number,

• -al, → -al.