dilapidate

From Latin dilapidō (“to scatter, consume, throw away”) + -ate (verb-forming suffix), from dis- (“asunder”) + lapidō (“to stone”), from lapis (“stone”). Compare French dilapider.

Learned borrowing from Latin dīlapidātus, perfect passive participle of dilapidō (“squander, consume, throw away”), see Etymology 1 and -ate (adjective-forming suffix) for more.