tekiccha : [adj.] curable; one who can be pardoned.

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

Tekiccha (adj.) [der. fr. tikiccha] curable; fig. one who can be helped or pardoned. Only in cpds. a˚ incurable, unpardonable VvA 322 (of a sick person); DhA i.25 (id.); Miln 322; of Devadatta w. ref. to his rebirth in Niraya Vin ii.202=It 85; M i.393; & sa˚ pardonable Miln 192, 221, 344.

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