Source : Webster's Revised Unabridged Dictionary (1913)

Abassi \A*bas"si\ ([.a]*b[a^]s"s[i^]), Abassis \A*bas"sis\
   ([.a]*b[a^]s"s[i^]s), n. [Ar. & Per. ab[=a]s[=i], belonging
   to Abas (a king of Persia).]
   A silver coin of Persia, worth about twenty cents.