ḍasati : [ḍaṃs + a] bites.

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

Ḍasati (& ḍaŋsati) [cp. Sk. da ati & daŋśati, Gr. da/knw, Ohg. zanga, Ags. tonge, E. tong] to bite (esp. of flies, snakes, scorpions, etc.), pres. ḍasati M i.519; pot. ḍaseyya M i.133; A iii.101=iv.320 (where ḍaŋs˚) & ḍaŋseyya A iii.306; ppr. ḍasamāna J i.265 (gīvāya); fut. ḍaŋsayissāmi J vi.193 (v. l. ḍass˚); aor. aḍaŋsi Vv 808 (=Sk. adānkṣīt), ḍaŋsi PvA 62 & ḍasi J i.502; DhA ii.258; inf. ḍasituŋ J i.265; ger. ḍasitvā J i.222; ii.102; iii.52, 538; DhA i.358. -- Pp. daṭṭha; cp. also dāṭhā & saṇḍāsa.

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