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100.
 Many of these nouns, however, are used in the
plural in some other sense.  
a. The plural of a proper name may be
applied to two or more persons or places, or even things, and so become
strictly common: -  
-  
- duodecim Caesarés,
the twelve Caesars.  
- Galliae, the two Gauls
(Cis- and Transalpine).  
- Castores, Castor and
Pollux; Iovés, images
of
Jupiter.  
b. The plural of names of things reckoned
in mass may denote particular objects: as, aera, bronze utensils, nivés, snowflakes; or
different kinds of a thing:  as, áerés, airs (good and bad).  
c. The plural of abstract nouns denotes
occasions or instances of the quality, or the like: -  
-  
- quaedam excellentiae, some
cases of superiority; ótia,
periods of rest; calórés,
frígora, times of heat and cold.  
 
 
 
