myEtymology.com: English etymology of costly

Etymology of the English word costly

the English word costly

derived from the English word cost

derived from the Old French word cost

derived from the Old French word coster

derived from the Latin word constare (agree, correspond, fit; be certain, decided, consistent; it is agreed, evident, understood; stand firm, still, erect)

derived from the Latin word stare (to stand; stand, stand still, stand firm)

derived from the Proto-Indo-European root *stā-

using the Latin prefix con- (together)

derived from the Latin prefix com-

derived from the Latin word cum (with)

derived from the Proto-Indo-European root *kom (near, with, together)

derived from the Old French word couster