forehand (adj.)youdaoicibaDictYouDict[forehand 词源字典]
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.[forehand etymology, forehand origin, 英语词源]