How do you spell Heft

Available Definitions:
1)  n. - Same as Haft, n.
2)  n. - The act or effort of heaving/ violent strain or exertion.
3)  n. - Weight; ponderousness.
4)  n. - The greater part or bulk of anything; as, the heft of the crop was spoiled.
5)   - of Heft
6)  v. t. - To heave up; to raise aloft.
7)  v. t. - To prove or try the weight of by raising.