1) To actively think about words, esp. the way in which they are added to the lexicon.

2) To actively attempt to create a word or to drastically alter the definition of a word and inject it into the lexicon artificially.
The writers of Battlestar Gallactica were highly successful when they lexicogitated "Frack" for use on their show.
by Bearcat40 August 14, 2009
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