də̇ˈkrepə̇t, dēˈ-, usu -ə̇d.+V adjective
also de·crep·id -pə̇d
Etymology: Middle English decrepit, from Middle French, from Latin decrepitus, probably from de from, down, away + crepitus, past participle of crepare to crack, creak, break — more at de- , raven
1.
a. : wasted and weakened by or as if by the infirmities of old age : old and feeble
the decrepit manager who was too ancient and incompetent for more serious employment — Ellen Glasgow
b. : made useless or impaired by excessive wear or long use : worn-out
the bus is decrepit and the seats and several of the windows are held together with friction tape — John Cheever
c. : in a state of ruin, dilapidation, or disrepair
two or three decrepit houses and a forlorn hotel — American Guide Series: California
2. : lacking power (as for carrying sediment) — used of a stream in the last stage of an erosion cycle
Synonyms: see weak