somma : [adj.] gentle; agreeable; pleasing.

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

Somma (adj.) [Sk. saumya, fr. soma] pleasing, agreeable, gentle Dāvs i.42; DA i.247; DhsA 127; VvA 205; SnA 456; Vism 168.

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

【形】 溫和的，愉快的，令人喜愛的。

A Chinese Translation of A.P. Buddhadatta Concise Pali-English Dictionary