ecumenicity

[ek-yoo-muh-nis-i-tee, -me- or, esp. British, ee-kyoo-]

noun

(in the Christian church) the state of being ecumenically united, especially in furthering the aims of the ecumenical movement.

Origin of ecumenicity

First recorded in 1830–40; ecumenic + -ity

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

But the ecumenicity of the council was generally acknowledged by 680.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 2
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