Ad rem—To the point (lit. to the thing).

A droit—To the right. Fr.

A drop of honey catches more flies than a 55 hogshead of vinegar. Pr.

A drop of water has all the properties of water, but it cannot exhibit a storm. Emerson.

A drowning man will catch at a straw. Pr.

Adscriptus glebæ—Attached to the soil.

Adsit regula, peccatis quæ pœnas irroget æquas—Have a rule apportioning to each offence its appropriate penalty. Hor.

Adstrictus necessitate—Bound by necessity. Cic. 60

Ad summum—To the highest point.

Ad tristem partem strenua est suspicio—One is quick to suspect where one has suffered harm before. Pub. Syr.