G4186–πολύτιμος–polutimos

He finds one most costly pearl; he goes away; and though it costs all he has, he buys it.

πολύτιμον polutimon “very precious”

Availing herself of the opportunity, Mary took a pound weight of pure spikenard, very costly, and poured it over His feet, and wiped His feet with her hair, so that the house was filled with the fragrance of the perfume.

πολυτίμου polutimou “of great price”

The sorrow comes in order that the testing of your faith--being more precious than that of gold, which perishes and yet is proved by fire--may be found to result in praise and glory and honour at the re-appearing of Jesus Christ.

πολυτιμότερον polutimoteron “more precious”