ostracize or ostracise /osˈtrə-sīz/

1. To exclude from society or from one's social group
2. In ancient Greece, to banish by popular vote, the voters writing on potsherds the name of the person they wanted banished

osˈtracism /-sizm/ noun

1. Expulsion from society
2. Banishment by ostracizing

• letter of peace
• letter-perfect
• letterpress
• letterpresses
• letter quality
• letter-quality
• letters
• letters credential
• letterset
• lettersets
• letters of administration
• letters of comfort
• letters of credence
• letters of credit
• letters of horning
• letters of indication
• letters of intercommuning
• letters-of-marque
• Letters of peace
• Letters pacifical
• letters patent
• letters requisitory
• letters rogatory
• letter-stamp
• letter-stamps