I. ˈheft noun
Etymology: from heave, after such pairs as weave : weft
Date: 15th century
1.
a. : weight , heaviness
b. : importance , influence
2. archaic : the greater part of something : bulk
II. transitive verb
Date: circa 1661
1. : to heave up : hoist
2. : to test the weight of by lifting
heft ing the rod…to get the feel of it — Consumer Reports