suṭṭhu

indeclinable well; the usual C. expln of the prefix su2 Pv-a.19, Pv-a.51, Pv-a.52, Pv-a.58, Pv-a.77, Pv-a.103 etc. s. tāta well, father Ja.i.170; s. kataṃ you have done well Ja.i.287; DN-a.i.297; suṭṭhutaraṃ still more Ja.i.229; Snp-a.418.

cp. Sk. suṣṭhu, fr. su˚