Petalism
Pronunciation : Pet"al*ism
Part of Speech : n.
Etymology : [Gr. p?talisme.] (Gr. Antiq.)
Definition : Defn: A form of sentence among the ancient Syracusans by which they banished for five years a citizen suspected of having dangerous influence or ambition. It was similar to the ostracism in Athens; but olive leaves were used instead of shells for ballots.
Source : Webster's Unabridged Dictionary, 1913