[Petronski]

In medical terminology X can mean 'all the rest' such as in Hx means history on your medical chart.

There are lots of handy, geeky terms like that. Xmit=transmit. Wx=weather. Dx=Diagnosis.

But Xmas is His initial in the place of His name. I find it perfectly acceptable.

[Petronski]

It should be read as 'Christmas' not 'Eksmas.'