Unit 1 - Prefixes

They provide information such as "where?" "how?" or "to what degree"

a-

without, lacking, deficient

an-

without, lacking, deficient (must use if before a vowel or h)

anti-

opposed to, preventing, relieving

ant-

opposed to, preventing, relieving (must use if before a vowel or h)

di-

two, twice, double

dys-

difficult, painful, defective

ec-

out, out of, away from

ex-

out, out of, away from (before a vowel)

ecto-

outside of

ect-

outside of (before a vowel)

en-

in, into, within

em-

in, into, within (before b, m, & p)

endo-

within

end-

within (before a vowel)

epi-

upon, over, above

ep-

upon, over, above (before a vowel or h)

exo-

outside, from the outside, toward the outside

hemi-

half, on one side of the body

hyper-

above, excessive, beyond normal

hypo-

under, deficient, below normal

hyp-

under, deficient, below normal (before a vowel or h)

mono-

one, single

mon-

one, single (before a vowel or h)

peri-

around

syn-

together, joined, with

sym-

together, joined, with (before b, p, m)

sy-

together, joined, with (before s)