本川: a surname

川本: a surname / 河本: a surname

根元, 根本: area near the root of a plant or anything similar / 根元, 根本: base of a pillar or a standing object / 根元, 根本: source or basis of something

根本: a surname

behind, after

(spatially) the back, the rear, behind / (temporally) later, afterwards, some time after the present / the rest

one's backside / the back, the rear (both spatially and temporally)

the rear, back, or backside of something / the rearward or backward direction / the portion of a palace where a queen or other female imperial consort lives

later, afterwards, some time after the present

(obsolete) later, afterwards, some time after the present