tussati : [tus + ya] to be glad or satisfied.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Tussati [Sk. tuṣyati to *teus to be quiet, contented, happy] to be satisfied, pleased or happy J iii.280; iv.138; Miln 210. Cp. tuṭṭha (pp.), tuṭṭhi, tuṇhī, tosa, tosana, toseti.

Pali-English Dictionary, TW Rhys Davids, William Stede,