Ringword puzzle #68 - solution

1: Prefix for -vector, -value, and -grau = eigen
4: Opposite of exo- = endo
7: Sphere or eye = orb
9: Pearls in bubble tea = boba
11: Prefix for -foot, -ly, and -bones = bare
14: Tokyo, historically = edo
16: Liver, heart, or kidney = organ
18: Cheers, to the Chinese = ganbei

Full solution: eigendorbobaredorganbei