From Longman Dictionary of Contemporary Englishheftheft /heft/ verb [transitive] 1 to lift something heavyheft something onto/into etc something He hefted his bag into the car.2 to lift or hold something in order to judge how heavy it is Quinn hefted the package in his hands.→ See Verb table
Examples from the Corpus
heft• Nor could the cadets yet don the power armour necessary to heft such bulk.• Young men hefted the 110-pound sacks of potatoes into a truck.• I stepped back obligingly and let him heft the box up off the floor and carry it to my car.• He memorized the positions of the walks before hefting the branch and starting down the slope.• There was another fellow running about there like us, some one from the guesthall, hefting things around off the altars.Origin heft (1400-1500) heave 