costly

adjective

of high price/value

L41041 on Wikidata ↗

Wiktionary

Pronunciation: /ˈkɒst.li/

adj

Etymology: From Middle English costly, costely, costeley, equivalent to cost + -ly.

Of high cost; expensive.
“a costly activity”
“a costly error”

noun

Etymology: From Middle English costly, costely, costeley, equivalent to cost + -ly.

Short for costly colours.
“Costly is a simpler game than cribbage.”