O.E. cirice "church," from W.Gmc. *kirika, from Gk. kyriake (oikia) "Lord's (house)," from kyrios "ruler, lord." For vowel evolution, see
bury. Gk. kyriakon (adj.) "of the Lord" was used of houses of Christian worship since c.300, especially in the East, though it was less common in this sense than ekklesia or basilike. An example of the direct Gk.-to-Gmc. progress of many Christian words, via the Goths; it was probably used by W.Gmc. people in their pre-Christian period. Also picked up by Slavic, via Gmc. (cf. O.Slav. criky, Rus. cerkov). Romance and Celtic languages use variants of L. ecclesia. Slang church key for "can or bottle opener" is from 1950s. Church-mouse, proverbial in many languages for its poverty, is 1731 in Eng.