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Term 1 Roots. Act/Ag. To do, to act. Agent--noun. DEFINITION A person or business authorized to act on another’s behalf. ETYMOLOGY Late 15 th century Latin Agentem “to set in motion, drive”. Agitate--verb. DEFINITION To move or force into violent, irregular action

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act ag
Act/Ag

To do, to act

agent noun
Agent--noun

DEFINITION

A person or business authorized to act on another’s behalf

ETYMOLOGY

  • Late 15th century
  • Latin
    • Agentem “to set in motion, drive”
agitate verb
Agitate--verb

DEFINITION

To move or force into violent, irregular action

To shake or move briskly

ETYMOLOGY

  • Latin
    • Agitare “to put in constant motion, drive”
interact verb
Interact--verb

ETYMOLOGY

To act one upon another

ETYMOLOGY

  • 1740-50
    • Inter + act
react verb
React--verb

DEFINITION

To act or perform again

ETYMOLOGY

  • Late Latin
    • Reagere
      • Re + agere “to drive”
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Bio

life

autobiography noun
Autobiography--noun

DEFINTION

A history of a person’s life written or told by that person

ETYMOLOGY

  • 1797
    • Auto + biography
biochemistry noun
Biochemistry--noun

DEFINITION

The science dealing with the chemistry of living matter.

ETYMOLOGY

  • 1880-85
    • Bio + chemistry
biodegradable adjective
Biodegradable--adjective

DEFINITION

Capable of decaying through the action of living organisms

ETYMOLOGY

  • 1960
    • Bio + degrade + able
clud clus claus
Clud/Clus/Claus

To close, to shut

conclude verb
Conclude--verb

DEFINITION

To bring to an end; finish; terminate

ETYMOLOGY

  • 1300 
  • from Latin
    • concludere "to shut up, enclose,"
reclusive adjective
Reclusive--adjective

DEFINITION

Shut off or apart from the world

Living in seclusion

ETYMOLOGY

  • Late Latin > Old French > Middle English
  • Recludere
    • “to shut up”
seclude verb
Seclude--verb

DEFINITION

To place in or withdraw into solitude

Remove from social contact and activity

ETYMOLOGY

  • Latin > Late Middle English
  • Secludere
    • “to close”
claustrophobic adjective
Claustrophobic--adjective

DEFINITION

Suffering from claustrophobia

ETYMOLOGY

1889

Claustrophobia + ic

contra counter
Contra/Counter

Opposite, against

contrary adjective
Contrary--adjective

DEFINITION

Opposite in nature or character

Being the opposite one of two

ETYMOLOGY

  • From Latin
    • Contrarius “opposite, opposed”
    • Contra “against”
counterattack noun
Counterattack--noun

DEFINITION

attack made as an offset or reply to another attack

ETYMOLOGY

1882 as a noun from counter- + attack

Early 19th century it was two words

First used as a verb in 1916

counterpart noun
Counterpart--noun

DEFINITION

A person or thing closely resembling another, especially in function

A copy; duplicate

ETYMOLOGY

  • 1451
  • Old French “contrepartie”
    • Contre “facing, opposite”
    • Partie “copy of a person or thing”
counterpoint noun
Counterpoint--noun

DEFINITION

Music. The art of combining melodies

a melody composed to be combined with another melody

ETYMOLOGY

  • Medieval Latin > Middle French > Middle English
    • 1400-50
  • Medieval Latin
    • Contrapunctus: song pointed or pricked against
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De

From, down, away

deflate verb
Deflate--verb

DEFINITION

To release the air or gas

To depress or reduce

ETYMOLOGY

  • 1891
  • Latin
    • Deflare “to blow away”
  • Modern
    • De “down”
demolish verb
Demolish--verb

DEFINITION

To destroy or ruin, especially on purpose

To put an end to; destroy; explode

ETYMOLOGY

  • Latin
    • Demoliri “tear down”
    • De “down” + moliri “build, construct”
deodorize verb
Deodorize--verb

DEFINITION

To rid of odor, especially unpleasant odor

ETYMOLOGY

1855-60

De “down, away” + odor “disagreeable smell” + ize “make”

descend verb
Descend--verb

DEFINITION

To go or pass from a higher to a lower place

Move or come down

ETYMOLOGY

  • Latin > Old French
  • Descendere
    • De “down” + scandere “to climb”