X. or Xt.—Christ.

Xmas or Xm.—Christmas.

Xn. or Xtian.—Christian.

Xnty. or Xty.—Christianity.

Xper. or Xr.—Christopher.

Yd.—Yard.

y. or yᵉ.—The.

yᵐ.—Them.

yⁿ.—Then.

yʳ.—Their; Your.

yˢ.—This.

yᵗ.—That.

Y. M. C. A.—Young Men’s Christian Association.

Yrs.—Years; Yours.

Zach.—Zachary.

Zech.—Zechariah.

Zeph.—Zephaniah.

Zool.—Zoology.

&.—And.

&c.—And so forth.

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