Dictionary Definition :
Definition[1]
:
dūsetvā : [abs. of dūseti] 1. to spoil; to pollute; 2. to defame; 3. to ill-treat.
Source
:
A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]