Meaning

verb expel from a community or group

verb avoid speaking to or dealing with

originFrom Ancient Greek ὀστρακίζω (ostrakízō, “to banish from a city by ostracism”), from ὄστρᾰκον (óstrăkon, “earthenware vessel; fragment of such a vessel, potsherd”) (from the fact that when voting was held to decide whether to banish people, their names were inscribed on potsherds) + -ῐ́ζω (-ĭ́zō, suffix forming verbs)). The English word is cognate with French ostraciser.

Etymology from Wiktionary, CC BY-SA 3.0