Word Study
treasure-trove
CIDE DICTIONARY
treasure-trove, n. [Treasure + OF. trové, F. trouvé, p. p. of OF. trover to find, F. trouver. See Trover.].
Any money, bullion, or the like, found in the earth, or otherwise hidden, the owner of which is not known. In England such treasure belongs to the crown; whereas similar treasure found in the sea, or upon the surface of the land, belongs to the finder if no owner appears. [1913 Webster]
ROGET THESAURUS
treasure-trove
Good
N good, benefit, advantage, improvement, greatest good, supreme good, interest, service, behoof, behalf, weal, main chance, summum bonum, common weal, consummation devoutly to be wished, gain, boot, profit, harvest, boon, good turn, blessing, world of good, piece of good luck, piece of good fortune, nuts, prize, windfall, godsend, waif, treasure-trove, good fortune, happiness, goodness, utility, remedy, pleasure giving, commendable, useful, good, beneficial, well, aright, satisfactorily, favorably, not amis, all for the best, to one's advantage, in one's favor, in one's interest, so far so good, magnum bonum.For further exploring for "treasure-trove" in Webster Dictionary Online