Why is it that things that are transported by boat are called CARgo, yet...?!

Question:

Why is it that things that are transported by boat are called CARgo, yet...?

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if it goes by truck, it called a SHIPment?

Answers: why is it that we drive on PARKways but park in DRIVEways? both terms can be used for both methods of transportantment... that's a good point... another thing that makes you go hmmmm good ? ....don't we americans have a unique language.....for sure.... :)

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