Python 3, Limnoria, Requests, and a Merriam-Webster Dictionary API key
lex <word>
The overall goal is to balance completeness with concise IRC legibility.
Reducing everything to a one-liner while letting Limnoria's more do most
of the work (and using colors/attributes and icons to aid reading) seems to
be the ideal solution right now, but this may change in the future.
Additional features may be added but generally kept to a minimum in order to
maximise readability and usefulness on IRC.
This will likely remain incompetently-crafted spaghetti code and is probably full of bugs and edge-cases I haven't spotted yet, but it works well enough thus far.
ety <word> gives word etymologies. This is probably full of boogs at
the moment.
Basic thesaurus lookups are available with an accompanying MW Thesaurus key
by using syn.