The Collaborative International Dictionary
Dilapidate \Di*lap"i*date\, v. t. [imp. & p. p. Dilapidated; p. pr. & vb. n. Dilapidating.] [L. dilapidare to scatter like stones; di- = dis- + lapidare to throw stones, fr. lapis a stone. See Lapidary.]
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To bring into a condition of decay or partial ruin, by misuse or through neglect; to destroy the fairness and good condition of; -- said of a building.
If the bishop, parson, or vicar, etc., dilapidates the buildings, or cuts down the timber of the patrimony.
--Blackstone. -
To impair by waste and abuse; to squander.
The patrimony of the bishopric of Oxon was much dilapidated.
--Wood.
Wiktionary
vb. (present participle of dilapidate English)