Bio-
De-
Co-,Con-,Com-
Mal-
Fid-
100
Story of a person's life, written by someone else.
Biography
100
To attack someone's good name or reoutation.
Defame
100
Feeling of deep sympathy for another.
Compassion
100
Intentionally hurtful.
Malicious
100
To be loyal. Strictly following promises.
Fidelity
200
Can live in water or on land.
Amphibious
200
To make weak or cripple.
Debilitate
200
To agree.
Concur
200
Smelling very unpleasent.
Malodorous
200
A close friend in whom you confide, or entrust with secrets.
Confidant
300
Study of life.
Biology
300
To criticize or blame for something.
Decry
300
The feeling of guilt that follows doing something bad or wrong.
Compunction
300
Infectious disease or cancerous tumor.
Malignant
300
A written, legal document or declaration.
Affidavit.
400
A relationship of mutual benefit or dependence.
Symbiotic
400
Extinct; no longer functioning.
Defunct
400
To blend or come together.
Coelesce.
400
Having evil intentions.
malevolent
400
Hesitant; not confident; timid.
Diffident
500
Having to do with life or living organisms
Biotic
500
To reduce in quality, lower in rank or dignity.
Debase
500
To convince or control someone by force.
Coerce
500
Pretending to be sick in order to avoid work
Mallinger
500
Deliberately deceitful; faithless.
Perfidious