KALAH or KALLAH
Kalah is the Hebrew word most often translated as 'to finish' or 'complete'. It first shows up in B'reshith 2:1
"Thus the heavens and the earth were FINISHED, and all the host of them."
It's cognate and closest relative is kallah, the Hebrew word for 'bride'. These two words are roughly the same for a very thought provoking reason. Man is not finished until he and the woman are one. Things are declared 'good' or tov when they are complete. We are told that it is not 'good' that man should be alone (B'reshith 2:18). In the same way, life as we know it, or 'the end' as some call it, will not come until the Messiah comes to take His bride. The Messiah is not complete without His bride. This is why the 'new heaven and new earth' are directly connected to the bride, the Lamb's wife. (Hitgalut 21:1, 10.)
Shalom Alecheim!