ETYM Old Eng. ark, arke, arche, AS. arc, earc, earce, from Latin arca, from arcere to inclose, keep off.
(Homonym: arc).
1. A boat built by Noah to save his family and animals from the Flood.
2. Sacred chest where the ancient Hebrews kept the two tablets containing the Ten Commandments; SYN. ark of the covenant.

ETYM French tronc, Latin truncus, from truncus maimed, mutilated.
1. A large strong case used when traveling or for storage.
2. The main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber; SYN. tree trunk, bole.