Euchologion

{ ‖Eu′cho‐lo″gi‐on (?), Eu‐chol″o‐gy (?), } n. [NL. euchologion, Gr. � prayer book; � prayer, vow (fr. � to pray) + � to say, speak.] (Eccl.) A formulary of prayers; the book of offices in the Greek Church, containing the liturgy, sacraments, and forms of prayers.