The Collaborative International Dictionary
Verbarian \Ver*ba"ri*an\, a.
Of or pertaining to words; verbal. [R.]
--Coleridge.
Verbarian \Ver*ba"ri*an\, n. One who coins words. [R.]
Southey gives himself free scope as a verbarian.
--Fitzed.
Hall.
Douglas Harper's Etymology Dictionary
"word-coiner," 1873, from Latin verbum "word" (see verb) + -arian. Coleridge (or the friend he was quoting) had used it earlier as an adjective, and with a different sense, in wishing for: "a verbarian Attorney-General, authorised to bring informations ex officio against the writer or editor of any work in extensive circulation, who, after due notice issued, should persevere in misusing a word" (1830).
Wiktionary
a. Of or relating to words; verbal. n. (context rare English) One who coins words.