'Unknowingly' in the Bible

for the fleeing thither of the man-slayer, who slayeth his neighbour unknowingly, and he is not hating him heretofore, and he hath fled unto one of these cities, and he hath lived:

And this is the matter of the man-slayer who fleeth thither, and hath lived: He who smiteth his neighbour unknowingly, and is not hating him heretofore,