- lousy (adj.)
[lousy 词源字典]
- mid-14c., lousi, "infested with lice," from louse + -y (2). Figurative use as a generic adjective of abuse dates from late 14c.; sense of "swarming with" (money, etc.) is American English slang from 1843. Related: Lousiness.[lousy etymology, lousy origin, 英语词源]