From ptrourke@mediaone.net Sun Jun 24 05:45:59 2001
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Date: Sun, 24 Jun 2001 08:45:57 -0400
Subject: T.I.D.
From: Patrick Rourke <ptrourke@mediaone.net>
To: <classics@u.washington.edu>
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> Medical prescriptions use a number of conventional Latin abbreviations,
> such as t.i.d. for ter in die, understood as thrice daily.  Given the
> Roman use of inclusive numbering, wouldn't t.i.d. in fact really have
> to mean what we would describe as twice daily?
> AMK

Nope.  Inclusive counting would begin at the first dose, which would be 1,
and end with third dose, which would be 3.  

.