Xm., Xmas. Christmas.

Xn., Xtian. Christian.

y., yr. Year.

y., yd. Yard.

Ye. The (the Y not being a Y, but as representing the Anglo-Saxon þ).

Y.M.C.A. Young Men's Christian Association.

yr. Your; Younger.

Yt. That (Y as in Ye).

Y.W.C.A. Young Women's Christian Association.

Zn. Zinc.