To make sweet to the taste] as, to
sweeten tea.
To make pleasing or grateful to the mind or
feelings; as, to sweeten life; to sweeten
friendship.
To make mild or kind; to soften; as, to
sweeten the temper.
To make less painful or laborious; to
relieve; as, to sweeten the cares of life.
To soften to the eye; to make
delicate.
To make pure and salubrious by destroying
noxious matter; as, to sweeten rooms or apartments that have
been infected; to sweeten the air.
To make warm and fertile; -- opposed to
sour; as, to dry and sweeten soils.
To restore to purity; to free from taint;
as, to sweeten water, butter, or meat.
In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
