So let me tell what the computer programmers believe about this word:"thread"
Of course it has the greek meaning of Νήμα but not with the way you think...it took that name because in a you have multiple answers or attacks to your computer because we call thread too a virus attack. But you shouldn't translate every foreign word you hear in your own language and learn to use it as it is
because you are getting confused, so my answer is that one of the uses of word thread is the greek word Νήμα
Sorry for english but it is forbidden to type in greeklish and i don't have greek language on my computer