a-/an-

Without not

Example anuria- absence of urine production

Ante-before; forward

Example antegrade- moving in the normal forward direction

Anti- against

Example antidiarrheal- an agent used against diarrhea

Brady-slow

Example bradygastria- abnormally slow gastric electrical activity

Dys-painful difficult or abnormal

Example:dysuria- painful or difficult urination

Endo- within; inner

Example: cendoscopy- visual examination within a body organ or cavity.

Up

Example: epigastric- pertaining to the region above the stomachon, above

Above normal; excessive

Example: hyperbilirubinemia- excess bilirubin in the blood 

Below normal; deficient

Example: hypochlorhydria- too little hydrochloric acid in the stomach.

Within

Example: intraperitoneal- within the peritoneal cavity

Around

Example: perirenal- around the kidney

Post- after; behind

Example: postprandial- occurring after a meal 

Behind backward

Example: retrooperitoneal- behind the peritoneum 

Across; through

Example: transurethral- through the urethra