neuter = attha2, only in phrase abbhatthaṃ gacchati “to go towards home”, i.e. setting; fig. to disappear, vanish MN.i.115, MN.i.119; MN.iii.25; AN.iv.32; Mil.305; pp. abhhattaṅgata “set”, gone, disappeared Dhs.1038 (atthangata +) Kv.576.
abhi + attha2 in acc. abhi + atthaṃ, abhi in function of “towards” = homeward, as under abhi i.1 a; cp. Vedic abhi sadhasthaṃ to the seat R.V. ix. 21. 3