transport, send, be inferior
輸 centers on moving something from one place to another: transporting goods or sending things. The sense of being inferior comes from the idea of losing in a contest, as if one's position is moved downward.
輸 combines 車 (vehicle) with 俞, which likely contributes the sound and originally meant a hollowed-out log or boat, suggesting conveyance. Together they express transporting by vehicle.
A vehicle 車 on the left and a shape 俞 that looks like a boat or container on the right: imagine loading goods onto a cart or boat to transport them.
For ユ, picture you driving a transport vehicle: you -> ユ, and you send the goods off.
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import; importation; introduction
transport; transportation; transit; conveyance
export; exportation
smuggling; contraband trade
transportation
blood transfusion
Yamato Transport
parallel importing; grey importing; gray importing
export and import
air transport; air lift; airlift
embargo
Ministry of Transport
transfusion
smuggling in; importing through illegal channels
Osumi class vehicle transport ship
Organization of Arab Petroleum Exporting Countries; OAPEC
container transportation; containerization
turnkey export
bus rapid transit system; BRT
parasite smuggling (attaching drug-filled containers to the hulls of cargo ships to covertly transport them across international borders)