proletary

[proh-li-ter-ee] /ˈproʊ lɪˌtɛr i/
adjective, noun, plural proletaries.
1.
proletarian.
Origin
1570-80; < Latin prōlētārius belonging to the lowest class of Roman citizens, i.e., those who contributed to the state only through their offspring, equivalent to prōlēt- (akin to prōlēs offspring; pro- pro-1 + -olēs (see adult)) + -ārius -ary
British Dictionary definitions for proletary

proletarian

/ˌprəʊlɪˈtɛərɪən/
adjective
1.
of, relating, or belonging to the proletariat
noun (pl) -tarians, -taries
2.
a member of the proletariat
Derived Forms
proletarianism, noun
proletarianness, noun
Word Origin
C17: from Latin prōlētārius one whose only contribution to the state was his offspring, from prōlēs offspring