"The pronunciation of this word was evidently kurios, 'lord' (like Hebrew adonay), for when the scribe ran out of room to write the tetragrammaton at the end of 2 Kings 23:24 (folio 2b, col. a, line 15), he simply wrote κυ, as an abbreviation of κύριος" (University of Cambridge Digital Library: Taylor-Schecher 20.50)
