Pali Roots

Dear Friends,

My venerable pali teacher has asked that I find information about any extent
list of pali roots that might be more or less complete.  He says there should be
at least 1000 roots, but that he has never seen any list so complete.  I have
seen lists of Sanskrit roots, even on the Internet, but never pali ones.  If
there exists any text containing all (or at least most) pali roots, electronic
or hard copy (more probable, I suppose), I would like to inquire as to whether
someone on this list might have information on how to obtain such a text.

Thanks in advance,

Yuttadhammo