English
Esperantologist
From Esperanto + -ologist.
Formed from Esperanto + -ologist
Proto-Indo-European *speh₁- ‘to succeed, to prosper’
…
Latin spērāre
Catalan esperar ‘to hope’
Esperanto esperi ‘to hope’
Esperanto Esperanto
English Esperanto
Today it means
noun A person who studies Esperanto in an academic way.
Language periods are conventional ranges, not dates for this word.
Etymograph / Esperantologist