or ostracise 'ɒstrəsʌɪz
■ verb
1》 exclude from a society or group.
2》 (in ancient Greece) banish (a citizen) from a city for five or ten years by popular vote.
Derivatives
ostracism noun
Origin
C17: from Gk ostrakizein , from ostrakon 'shell or potsherd' (on which names were written in voting to banish unpopular citizens).