churchwide

The word is a modern English compound, transparently formed from two native English elements. The first element, "church," has a complex journey from the Greek kyriakon, meaning "belonging to the Lord," which was adopted into Germanic languages via Gothic and eventually became the Old English cirice. The second element, "wide," stems from the Proto-Germanic wīdaz, meaning "far, spacious." When combined in the pattern "Noun-wide," the compound creates an adjective meaning "throughout the entire scope of that noun." Thus, "churchwide" logically denotes something that encompasses or pertains to the whole institution of a church, extending the ancient sense of "broad extent" to a specific, collective body.

Structure: church (institution) + wide (extent) - church: From Old English cirice, circe, ultimately from Late Greek kyriakon (dōma) meaning "Lord's (house)". Functions as the core noun, specifying the domain. - wide: From Old English wīd ("spacious, broad"). Functions as a combining form meaning "extending throughout the whole of" the specified noun.