to go to, to visit, inspect, control
ppr med -saññāyamāna Vin.iii.43 (kammante);
inf -saññātuṃ AN.i.68. (janapade).

either anu + saṃ + jñā (jānāti) or (preferably) = anusaṃyāti as short form of anusaṃyāyati, like anuyāti → anuyāyati of anu + saṃ + yā, cf. Sk. anusaṃyāti in same meaning