decrepityoudaoicibaDictYouDict[decrepit 词源字典]
decrepit: [15] The underlying meaning of decrepit is ‘cracked’. It comes from Latin dēcrepitus, an adjective formed (with the intensive prefix dē-) from the past participle of crepāre ‘creak, rattle, crack’ (ultimate source also of English crepitation, crevice, and probably craven).
[decrepit etymology, decrepit origin, 英语词源]
decrepit (adj.)youdaoicibaDictYouDict
mid-15c., from Middle French décrépit (15c.), from Latin decrepitus "very old, infirm," from de- "down" (see de-) + *crepitus, past participle of crepare "to crack, break" (see raven).