the GNU version of the Collaborative International Dictionary of English
ad. Beforehand; in anticipation.
adj. Prepared; previously provided; -- opposed to behindhand.
The Century Dictionary and Cyclopedia
Beforehand; in advance; in anticipation.
Beforehand in condition; forehanded: as, he is aforehand with the world.
Word Usage
"You generally don't need to be paranoid about your money in Mexico but in the cantinas, especially after a couple hours of heavy drinking and petting the precautions you mentioned aforehand are a good idea."