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1.
Tis a mystery. Use a search engine and it is everywhere, however I don't find it in any dictionary. Somewhere between expedient and expeditious expect soon to find expedious!
When a complaint is received, the Town will then investigate the allegation in a fair and expedious manner.

The law requires SSA to expedite the provisional payments, but the law did not require the DDS to be as expedious.
by Wil Allyn March 11, 2005