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Hyphens, SR14.3
Prefixes
Common
prefixes,
suffixes,
and
combining
forms
(see
lists
below)
generally
are
joined
to
words
without
a
hyphen.
Use
a
hyphen
when
adding
a
prefix,
suffix,
or
combined
form
creates
an
ambiguous
word
(as
in
the
case
of
homonyms)
or
a
word
that
would
make
the
reader
hesitate. You
can
re-cover
the
chair.
Can
you
recover
the
money?
He
re-sided
the
house.
He
resided
in
Des
Moines.
Common
prefixes
joined
to
words
without
a
hyphen:
anti-
de-
dis-
in-
infra-
inter-
intra-
mid-(except
months)
mis-
non-
over-
per-
post-
pre-
pro-
re-
semi-
sub-
super-
supra-
trans-
ultra-
un-
under-
Use
a
hyphen
with
the
prefix
ex-. ex-president
Use
a
hyphen
when
the
main
word
element
is
capitalized
or
is
a
figure
or
a
word
combination. un-American
pre-Queen
Anne
pre-1980