a-
without, not
a/mast/ia
without a breast
ab-
from, away from
ab/duction
movement of limb away from body
ad
toward
ad/duction
movement of limb toward body
an-
without, not
an/esthesia
without feeling
anti-
against
anti/bacteri/al
against bacteria
bi-
two
bi/later/al
pertaining to two sides
brady-
slow
brady/cardia
slow heart rate
circum-
around
circum/ren/al
pertaining to around the kidney
contra-
against
contra/ception
against conception or impregnation
dia-
through, across
dia/rrhea
flow through
dipl-
double
dipl/opia
double vision
diplo-
double
diplo/bacter/ial
bacteria linked together in pairs