What does pollakis mean in Greek?

Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water.

Because that he had been often bound with fetters and chains, and the chains had been plucked asunder by him, and the fetters broken in pieces: neither could any man tame him.

And ofttimes it hath cast him into the fire, and into the waters, to destroy him: but if thou canst do any thing, have compassion on us, and help us.

And Judas also, which betrayed him, knew the place: for Jesus ofttimes resorted thither with his disciples.

And I punished them oft in every synagogue, and compelled them to blaspheme; and being exceedingly mad against them, I persecuted them even unto strange cities.

Now I would not have you ignorant, brethren, that oftentimes I purposed to come unto you,(but was let hitherto,) that I might have some fruit among you also, even as among other Gentiles.

And we have sent with them our brother, whom we have oftentimes proved diligent in many things, but now much more diligent, upon the great confidence which I have in you.

Are they ministers of Christ?(I speak as a fool) I am more; in labours more abundant, in stripes above measure, in prisons more frequent, in deaths oft.

In journeyings often, in perils of waters, in perils of robbers, in perils by mine own countrymen, in perils by the heathen, in perils in the city, in perils in the wilderness, in perils in the sea, in perils among false brethren;

In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.