Where does “matti” come from?

matti (Finnish) comes from Finnish Matias, from Latin Matthiās, from Ancient Greek Ματθίας, from Ancient Greek Ματταθίας, from Hebrew מַתִּתְיָהוּ, from Hebrew יהוה, from Proto-Semitic *haway- — to be, to become, to fall, to happen.

matti (Finnish): checkmate; State of being absolutely sure; State...