
1) Lower class in 1984 2) Orwellian hoi polloi 3) Working class in 1984 4) Working class members 5) Working-class types
Found on
https://www.crosswordclues.com/clue/proles

Latin, meaning: offspring, descendants, posterity, (plants fruit).
Found on
http://archives.nd.edu/ppp.htm

In Nineteen Eighty-Four by George Orwell, proles (collective noun) refers to the working class of Oceania (i.e. the proletariat). Oceania`s society is divided into three distinct classes: Inner Party, Outer Party and proles (with their own upper, middle and lower classes). The proles constitute 85% of the population; they receive little education....
Found on
http://en.wikipedia.org/wiki/Proles

proles Offspring; progeny; issue.
Found on
http://www.wordinfo.info/words/index/info/view_unit/3477/8

offspring, descendants, posterity, (plants
Found on
https://www.math.ubc.ca/~cass/frivs/latin/latin-dict-full.html
No exact match found.