de·fen·sor | \də̇ˈfen(t)sər, dēˈ-, -nˌsȯ(ə)r\
plural -s

Definition of defensor 

1 obsolete : defender

2a Roman law : one who voluntarily undertook the defense of a case and gave security to satisfy the judgment

b : an advocate conducting the defense of a case in court

3 [ Late Latin, from Latin ] : an advocate in the later Roman Empire:

a : a municipal officer appointed to protect the people from oppression

b : a layperson or member of the clergy appointed to defend the rights and property of the church

4 [ Late Latin, from Latin ] : the patron of a church : an officer having charge of the temporal affairs of a church

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History and Etymology for defensor

Middle English defensour, from Latin defensor, from defensus (past participle of defendere to defend) + -or

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a state of commotion or excitement

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