Where does “kirk” come from?

Kirk comes from Old Norse kirkja, from Ancient Greek κυριακόν, ultimately from Proto-Indo-European ḱēw-, meaning to swell or curve.

kirk (English): a church

Definitions

Step	Language	Word	Meaning
1	Old Norse	kirkja	church
2	Old English	ċiriċe	church
3	Proto-West Germanic	kirikā	church
4	Ancient Greek	κυριακόν	church
5	Ancient Greek	Κύριος	Lord
6	Proto-Hellenic	*kúrios	—

kirk — Etymology, Origin & Word History | Etymology Explorer