three (every three)

tricycle- vehicle having three wheels

tri-weekly- once every three weeks

trinity- definition 1) group of three

2) once every three weeks

water

hydrous- having to do with water

hydrodynamics- the study of the power of water

inflammation - double "m"

carditis- inflammation of the heart

gastritis- inflammation of the stomach

before/ front

anteroom- a smaller room before a larger room

important: a hyphen before a capital letter

ante-christian- before the christian era

ante meridiem- A.M. (before noon)

government by

democracy- government by the people

plutocracy- government by the wealthy

step

downgrade- step down

graduation- condition of taking a step