adjective intelligent, wise, often combined with paṇḍita & bahussuta;: DN.i.120; SN.iv.375; AN.iv.244; Vin.iv.10, Vin.iv.13, Vin.iv.141; Snp.323 (acc. medhāvinaṃ + bahussutaṃ), Snp.627, Snp.1008 (Ep. of Mogharājā), Snp.1125 (id.) Cnd.259 (s. v. jātimā, with var. other synonyms) Dhp.36; Ja.vi.294; Mil.21; Dhp-a.i.257; Dhp-a.ii.108; Dhp-a.iv.169; Vv-a.131; Pv-a.41.

medhā + in = *medhāyin → medhāvin; already Vedic, cp. medhasa