decrepit

adj. 衰老的，破旧的

decomposition, decompress, decompression, decongestant, decontaminate, decontamination, decontrol, decor, decorate, decoration, decorative, decorator, decorous, decorously, decorum, decoy, decrease, decree, decree absolute, decree nisi, decrepitude, decry, dedicate, dedicate to, dedicated, dedication, deduce, deducible, deduct, deductible, deduction, deductive, deductively, deed, deed of covenant, deed poll, deed-box, deem, deep, deep down,