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Vocabulary from Classical Roots, Book A, Lesson 2

STUDY
PLAY
TRI, TRES
Three, Latin Root
Trilogy
A set of three literary or dramatic works related in subject or theme
Trisect
To divide into three parts
Triumverate
A group of three; especially in authority
QUARTUS, QUATUOR
Fourth, Four, Latin Root
Quadrant
1. A quarter of the circumference of a circle or of its circumference (mathmatics)
2. An early machine for measuring altitudes
3. Any of the four parts of an area divided by perpendicular lines.
Quartet
1. A musical composition for four voices or instruments
2. A set of four, especially of four musicians
Quatrain
A stanza or group of four lines of poetry
DECEM
Ten, Latin Root
Decimate
1. To kill one out of ten
2. To destroy or kill a large part of
Decathalon
an athletic contest in which each contestant takes part in ten events
CENTUM
Hundred, Latin Root
Bicentennial
A two-hundredth anniversary
Centenary
Pertaining to a 100-year period
Centigrade
Referring to a thermometer scale of 100 degrees where water freezes at 0 degrees and boils at 100 degrees