おんぶ

Etymology
From.

Noun

 * 1)  a piggyback ride; being carried on someone's back
 * 2) dependence; depending on someone, relying on someone
 * 1) dependence; depending on someone, relying on someone

Verb

 * 1)  to give someone a piggyback ride
 * 2)  to receive a piggyback ride
 * 3) to rely on, depend on (someone)
 * 1) to rely on, depend on (someone)