1879 in reference to a tennis stroke; 1909 as a noun in this sense; from fore- + hand (n.). Earlier it meant "position in front or above" (1550s); hence forehanded "prudent, careful of the future" (1640s), which came to mean "well-provided, well-to-do," a sense which lingered in New England into 19c.
1. The forehand stroke should be fluid and well balanced.
2. Agassi saw his chance and, with another lightning forehand, reached match point.