hoard
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noun
a stock or store of money or valued objects, typically one that is secret or carefully guarded:
(貴重品･食料などの)蓄え, 貯蔵品, 秘蔵物
e.g. he came back to rescue his little hoard of gold.
an ancient store of coins or other valuable artifacts:
e.g. a hoard of Romano-British bronzes.
an amassed store of useful information or facts, retained for future use:
e.g. a hoard of secret information about his work.
verb with object
amass (money or valued objects) and hide or store away:
〈食料･金など〉を(ひそかに)蓄える, 貯蔵する(away, up)
e.g. thousands of antiques hoarded by a compulsive collector
e.g. many of the boat people had hoarded rations.
reserve in the mind for future use:
e.g. (as adjective hoarded) : a year's worth of hoarded resentments and grudges.
ORIGIN
Old English hord (noun), hordian (verb), of Germanic origin; related to German Hort (noun), horten (verb).
USAGE
The words hoard and horde have some similarities in meaning and are pronounced the same, so it is unsurprising that they are sometimes confused. A hoard is ‘a secret stock or store of something,’ as in a hoard of treasure, while a horde is a disparaging word for ‘a large group of people,’ as in hordes of fans descended on the stage. Instances of hoard being used instead of horde are not uncommon: around a quarter of citations for hoard in the Oxford English Corpus are for the incorrect use.