Exodus 11:5

And all the bakawar (firstborn) in the aratz (Earth/land) of Matzarayam (Matzarayam / Egypt) shall mawath (death), from the bakawar (firstborn) of Paraih (Pharaoh) who yashab (inhabit/dwell) on his kasaa (throne), even to the bakawar (firstborn) of the female servant who is achar (other) the rachah (mill); and all the bakawar (firstborn) of livestock.