avasussati : [va + sus + ya] dries up; withers.

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

Avasussati [Sk. *ava -- suṣyati of śuṣ] to dry up, to wither; in later quotations of the old kāmaŋ taco ca nahāru ca aṭṭhi ca avasussatu (upasussatu sarīre maŋsalohitaŋ) J i.71, 110; Sdhp 46. It is a later spelling for the older avasissatu see Trenckner (M i.569). -- fut. avasucchati (= Sk. *˚śokṣyati, fut. of Intens.) J vi.550 (v. l. BB ˚sussati; C. avasucchissati).

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