What this suffix does
The suffix -emia (American English) or -aemia (British English) comes from Greek "haima" (blood) and indicates a condition affecting the blood, or the presence, excess or deficiency of a substance in the blood.
From "an-" (without) comes "anemia" (too little haemoglobin/iron in blood); from "leuko-" (white) comes "leukemia" (too many abnormal white blood cells); from "hyper- + glyco-" comes "hyperglycemia" (too much sugar in blood).
Spanish: anemia, leucemia, hiperglucemia, septicemia — almost always identical.
Prefixes that show excess or deficiency in blood
The -emia system is very logical: the prefix names the substance and an optional modifier shows whether there is too much or too little:
hyper + glyc + emia = hyperglycemia (too much sugar → diabetes)
hypo + glyc + emia = hypoglycemia (too little sugar → dizziness)
hyper + lip + emia = hyperlipidemia (too much fat in blood)
an + emia = anemia (too little haemoglobin)
leuko + emia = leukemia (blood cancer: too many abnormal white cells)
septic + emia = septicemia (bacteria in the bloodstream)
bacter + emia = bacteremia (bacteria in blood)
poly + cyte + emia = polycythemia (too many red blood cells)
Anemia and leukemia: the two most familiar
"Anemia" (US) / "anaemia" (UK):
- Literally "without blood" (an = without + emia = blood)
- In practice: deficiency of haemoglobin or red blood cells
- Symptoms: fatigue, paleness, breathlessness
- Most common cause: iron deficiency ("iron-deficiency anemia")
"Leukemia" (US) / "leukaemia" (UK):
- leuko = white (white blood cells)
- A blood cancer: uncontrolled production of abnormal white blood cells
- Pronounced /luːˈkiːmiə/ = "loo-KEE-mee-uh"