I know. (Xeris – you know.)
This word is particularly curious since it almost invariably signifies the reverse of what it actually means.
Aside from the above, it has three degrees of meaning all of which are more common than you might imagine.
The word is repeated three or four times in quick succession with the voice slightly sing-song and pitched a little deeper on each repetition.
The hand may be flicked dismissively over the shoulder as if warding off a mosquito.
This is equivalent to "Yes, yes, I know all that – its obvious!" What it really means is "I have listened to a bare minimum of what you were saying and I may possibly understand some part of it. This is amply sufficient for the task at hand"
This attitude is commonly manifested when one is giving complex instructions to mechanics, decorators or builders, especially when these instructions take more than 45 seconds to complete.
You will be interrupted by salvoes and volleys of xero, xero, nai xero xero xero xero nai nai xero nai xero xero (Neh - Yes) in a soothing voice as if speaking to a precocious but subnormal child accompanied by an amused and confident smile. This is the clearest indication that the limits of the attention span have been exceeded, communication has broken down and as of now only you are listening.
The word is fired in quick succession punctuated by an occasional ah? This actually means, "I had no idea of what you were talking about and now I do in fact understand this I am not grateful for you drawing my attention to my negligence."
3. Xero ge'ego?
In this use, the phrase literally means "and I know?" and implies "and who's the fool asking?"
It is most often applied in an attempt to dodge responsibility as the individual who employs it may be the one who is supposed to know and hopes to throw you off the scent with a display of truculence.
Not uncommonly, the person who employed the Xero (1) will employ the Xero (2) when you discover they did not Xeri anything in point of fact and have burnt out your oil-less transmission (but changed your fresh engine oil), stuck your floor tiles to the walls of the wrong room, walled up your toilet (having first sold the fittings discretely to their brother in law) and generally rendered a totally catastrophic thallasa of the entire situation.
Under these circumstances they will try to bully you into agreeing that their skilfully planned alternative solution that they forgot to mention (i.e. mistake or lathos) was better than your original plan anyway and thus you should in truth be grateful.
Xero (3) is for when you ask when they are going to fix it.