ecumenical

The word 'ecumenical' originates from the Greek term oikoumenē, which referred to the entire inhabited world as known to the ancient Greeks. In early Christian usage, this concept was adopted to describe church councils, like the Ecumenical Councils, which were intended to represent the entire Christian world. Over time, the meaning broadened from a specifically Christian universalism to a more general sense of worldwide scope or inclusiveness across different faiths, movements, or fields. Thus, the literal idea of "pertaining to the inhabited world" evolved into the modern abstract meanings of promoting worldwide Christian unity or being broadly inclusive.

Structure: ecumen (inhabited world) + ic (adjective suffix) + al (adjective suffix) - ecumen: From Greek oikoumenē (the inhabited world), from oikein (to inhabit). - ic: A suffix forming adjectives, from Greek -ikos. - al: A suffix forming adjectives, from Latin -alis.