西貢[saigon] Saigon
貢ぎ[mitsugi] tribute
貢ぐ[mitsugu] to support
貢献[kouken] contribution (furthering a goal or cause)
入貢[nyuukou] paying tribute

年貢[nengu] annual tribute
年貢米[nengumai] annual rice tax
来貢[raikou] coming to pay tribute
貢物[mitsugimono] tribute
朝貢[choukou] bringing tribute