DECREPIT
decrepit, debile, feeble, infirm, rickety, sapless, weak, weakly
(adjective) lacking bodily or muscular strength or vitality; “a feeble old woman”; “her body looked sapless”
creaky, decrepit, derelict, flea-bitten, run-down, woebegone
(adjective) worn and broken down by hard use; “a creaky shack”; “a decrepit bus...its seats held together with friction tape”; “a flea-bitten sofa”; “a run-down neighborhood”; “a woebegone old shack”
Source: WordNet® 3.1
Etymology
Adjective
decrepit (comparative more decrepit, superlative most decrepit)
Weakened or worn out from age or wear.
Synonyms
• aged, timeworn, withered; see also old or deteriorated
Anagrams
• depicter, precited, redepict
Source: Wiktionary
De*crep"it, a. Etym: [L. decrepitus, perhaps orig., noised out,
noiseless, applied to old people, who creep about quietly; de- +
crepare to make a noise, rattle: cf. F. décrépit. See Crepitate.]
Definition: Broken down with age; wasted and enfeebled by the infirmities
of old age; feeble; worn out. "Beggary or decrepit age." Milton.
Already decrepit with premature old age. Motley.
Note: Sometimes incorrectly written decrepid.
Source: Webster’s Unabridged Dictionary 1913 Edition