"Meter" is a Greek root. It comes from the Greek word "metron," which means measure.
The Greek root "meter" means measure or measurement. It is commonly used in words related to measuring or counting, such as thermometer (device to measure temperature) or diameter (distance across a circle through its center).
The Greek root word therm means heat.Common words that come from this root are "thermometer, theorem, thermal, thermos bottle, thermostat, and hypothermia." (Thanks to MSU.)
Thermometer.
The Greek root of "kilometer" is "kilo," which means a thousand. "Meter" is also derived from Greek and refers to a measurement of distance.
peri= around, meter= measure.
speedometer, gyronmeter, etc.
Don is not a Greek root word.
life
it is not a greek root or any root
The root word for sphygmomanometer is "sphygmo," which comes from the Greek word "sphygmos," meaning pulse.
Assuming you mean cred- as in incredible, credibility, etc., it comes from the Latin word credere (to believe).