Dear grapho: Fear not the psephoi, but beware the ostrakoi.
ostracize
ostracise
verb ostracized, ostracizing

1. To exclude someone from a group or society, etc; to refuse to associate with them.

Thesaurus: banish, bar, blacklist, blackball, cast out, shun, snub, expel; Antonym: receive, welcome, reinstate.
2. historical
In Athens and other ancient Greek cities: to banish someone by popular vote. The banishment was for a fixed period of up to ten years and did not involve loss of property or citizenship.
Derivative: ostracism
noun

Etymology: 17c: from Greek ostrakizein, from ostrakon potsherd, because in ancient Greece the voters wrote on potsherds the name of the person they wished to banish.

To save tsuwm the trouble of telling you, I remember getting
"psephology" from him over two years ago.