expensive

Etymology

From Latin expēnsīvus, from expendō; synchronically analyzable as expense + -ive. In the sense of "high-priced" has largely displaced dear.

adj

1. (obsolete) Given to expending a lot of money; profligate, lavish.
2. Having a high price or cost.
   If successful, Edison and Ford—in 1914—would move society away from the ever more expensive and then universally known killing hazards of gasoline cars: […] . 2006, Edwin Black, chapter 1, in Internal Combustion
   […] a new study of how Starbucks has largely avoided paying tax in Britain […] shows that current tax rules make it easy for all sorts of firms to generate […] “stateless income”: […]. […] the firm has in effect turned the process of making an expensive cup of coffee into intellectual property. 2013-06-22, “T time”, in The Economist, volume 407, number 8841, page 68
3. (computing) Taking a lot of system time or resources.
   an unnecessarily expensive choice of algorithm