Heirloom
Heirloom , noun
[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.