Source : Webster's Revised Unabridged Dictionary (1913)

Sinologue \Sin"o*logue\, n. [From L. Sinae, an Oriental people
   mentioned by Ptolemy, or Ar. Sin China or the Chinese + Gr.
   ??? discourse; formed like theologue: cf. F. sinologue.]
   A student of Chinese; one versed in the Chinese language,
   literature, and history.