Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Jayamahālekhaka
Jayamahālekhaka:A rank conferred by Devānampiyatissa on Sumitta, who accompanied the Sacred Bodhi-tree to Anurādhapura (Mbv.165).The rank was evidently held by his descendants in perpetuity.E.g.,Cv.lxix.12.