Ikkāsa (?) [uncertain as regard meaning & etym.] at Vin ii.151 (+ kasāva) is trsl. by "slime of trees", according to Bdhgh's expln. on p. 321 (to C. V. vi.3, 1), who however reads nikkāsa.

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