Monotessaron
/ˌmɒnə(ʊ)ˈtɛs(ə)rɒn/noun
A continuous narrative prepared from a collation of the four Gospels; = diatessaron. Chiefly in or with reference to book titles.
Origin
Mid 17th century. From post-classical Latin monotessaron, irregularly from mono- + -tessaron (in diatessaron), with intended sense ‘one from four’.