vocabulist

noun3

1. •
   The writer or maker of a vocabulary (dictionary or glossary); a lexicographer.
2. •
   One who cultivates a large or impressive vocabulary.

   • There is not the least mystery about the meaning of the name of this river, the greenest vocabulist in the Algonquin tongue knows its meaning. — 1853
3. •
   (no longer used) A dictionary or glossary.