n. 传家宝, 动产继承物

[法] 祖传动产, 传家宝

Heirloom \Heir"loom`\, n. [Heir + loom, in its earlier sense of
implement, tool. See {Loom} the frame.]
Any furniture, movable, or personal chattel, which by law or
special custom descends to the heir along with the
inheritance; any piece of personal property that has been in
a family for several generations.

Woe to him whose daring hand profanes
The honored heirlooms of his ancestors. --Moir.