D.D. (L. divinitatis doctor), Doctor of Divinity.
D.G. (L. Dei gratiâ), by the grace of God; (L. Deo gratias), thanks to God.
do. or Do., the same.
doz., dozen.
Dr., doctor; debtor.
D.S. (It. dal segno), from the sign.
D.Sc., Doctor of Science.
Dunelm., Durham.
D.V. (L. Deo volente), God willing.
dwt. (L. denarius, a silver coin, a penny; and first and last letters of Eng. weight), pennyweight.