ETYM Old Eng. tresor, tresour, French trésor, Latin thesaurus.
1. A collection of precious things.
2. Accumulated wealth in the form of money or jewels etc.; SYN. hoarded wealth.
3. Any possession that is highly valued by its owner.

1. To hold dear or in high esteem
2. To collect and save, such as money or other valuable things, for future use; to lay up