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Webster 1913 Edition

Noun.

The practice of bartering goods; exchange; barter; truck.

The

truckage

of perishing coin.

Milton.

Noun.

Money paid for the conveyance of goods on a truck; freight.

Noun.

The practice of bartering goods.

truckage ‎(countable and uncountable, plural truckages)

the carrying of goods by truck
a charge for this
(obsolete) exchange; bartering; truck
- Milton
  The truckage of perishing coin.