[ ˌɛspə'rantəʊ ]
■ noun an artificial language devised in 1887 as an international medium of communication, based on roots from the chief European languages.
Derivatives
Esperantist noun
Origin
from Dr ~ , used as a pen name by the inventor of the language, Polish physician Ludwik L. Zamenhof; the literal sense is 'one who hopes' (based on L. sperare 'to hope').