-ity
What is a condition of being?
Example: Legality (condition of being legal)
-ology
What is the study of/science of?
Example: Biology (study of life)
bio-
What is life?
Example: Biology (study of life)
psych/psycho
What is mind or soul?
Example: Psychology (study of mind or soul)
ge/geo
What is earth?
Example: Geology (study of the earth)
soci/socio
What is the relationship of living things?
Example: Sociology (study of the relationship of living things)
anthrop/anthropo
What is early man or humans?
Example: Anthropology (study of humans)
zo/zoo
What is animal?
Example: Zoology (study of animals)
mono
What is one?
Example: Monologue (one speaker)
-ism
What is belief in?
Example: Theism (belief in God)
pre-
What is before?
Example: Prehistoric (before history)
oid
What is resembling?
Example: Anthropoid (resembling early man or humans)
poly
What is many?
Example: Polysyllable (having many syllables)
-ic/tic (adjective)
What is having to do with?
Example: Biologic (having to do with the study of life)
-ic/tic (noun)
What is person who has or is?
Example: Psychotic (a person who has a mental disorder)
-ologist
What is an expert in the study of?
Example: Zoologist
-meter/ometer
What is a device that measures?
Example: Speedometer
ex-
What is former?
Example: Ex-teacher
Example: Monogamy (one marriage)
pluto
What is wealth?
Example: Plutology (study of wealth)
ultra-
What is extreme?
Example: Ultrasound (extreme sound)
derm/derma
What is skin?
Example: Dermatology (study of skin)
cycl/cycle/cyclo
What is circle or cycle?
Example: Bicycle
theo
What is God?
Example: Theology (study of God)
mis-
What is bad or badly?
Example: Misbehavior (behave badly)